Scot Forge produces discs and blanks of ferrous and non-ferrous materials, with an infinite variety of sizes from 2" to 14" diameter, and individual weights up to 100,000 lbs. Forged Discs & Gear Blanks Forged Discs & Gear Blanks Forged Blanks & Discs vs. Cutting Plate Forged discs offer strength and durability. As is true with all forgings, discs and blanks that are forged have a stronger microstructure versus alternative metal forming methods such as burning out plate. At Scot Forge, we produce discs and gear blanks in ferrous and non-ferrous materials, with an infinite variety of sizes from 2" to 144" diameter, and individual weights up to 300,000 lbs. Forged Blanks & Discs vs. Cutting Plate Forged discs offer strength and durability. As is true with all forgings, discs and blanks that are forged have a stronger microstructure versus alternative metal forming methods such as burning out plate. At Scot Forge, we produce discs and gear blanks in ferrous and non-ferrous materials, with an infinite variety of sizes from 2" to 144" diameter, and individual weights up to 300,000 lbs. FORGE CONSULTATION SERVICES FORGED PRODUCTS FORGE CONSULTATION SERVICES FORGED PRODUCTS At Scot Forge, we produce discs and gear blanks of ferrous and non-ferrous materials, with an infinite variety of sizes from 2" to 144" diameter, and individual weights up to 300,000 lbs. Forged Discs & Blanks Process Highlights Forged Discs & Blanks Process Highlights Scot Forge Difference At Scot Forge, we know the importance of getting your parts on-time, as expected. However, for customers new to procuring forgings, ordering a forging that will meet all specifications for end-use applications may be a challenge, which is why finding a trusted supplier and partner is essential. Our employee-owners are here to ensure your project stays on track with our forgings by offering: Forge Design & Engineering Guidance Finished Machining Options Metallurgical Review, NDE & Destructive Testing Forged Products We offer many size forgings in both standard and unique geometries to meet your needs. Complex Shapes Bars Step Shafts, Eccentric Shafts & Rotor Shafts Hollows Hubs & Tooled Forgings Semi-Closed Die Discs & Blanks Pro Tip - Did you know near-net shapes can save you time and money? Oftentimes, a customer calls to order a disc, which they will later machine down to a more shaped part. By working with our technically trained sales team, you can get your finished product shape as close as possible to optimize your production process. We can help you today! Name* Phone Number* Company* Email* State/Country* Comment/Request* File upload Upload File NOTE: Please do not upload sensitive documents. For a secure file transfer please call 800-435-6621. Submit

Employment Information Scot Forge Company is an Equal Employment Opportunity (EEO) employer and welcomes all qualified applicants. Applicants will receive fair and impartial consideration without regard to race, color, religion, sex, gender identity or sexual orientation, transgender status, national origin, age, marital status, genetic information, disability, protected veteran status or other legally protected status. Scot Forge Company ensures nondiscrimination in all programs and activities in accordance with Title VI & Title VII of the Civil Rights Act of 1964. If you need more information or special assistance for persons with disabilities contact Human Resources. Employment Documents Equal Employment Opportunity Statement Pay Transparency Policy Statement E-Verify & Right to Work Notice Notice to All Employees & Prospective Employees Learn More Career Opportunities If you are seeking a career, not just a job, click to explore our current openings. Employee Benefits Here are the top reasons why Scot Forge employee-owners choose to build their careers with us. Career Development Scot Forge offers a wide range of opportunities for individuals to develop, advance and grow. Why Manufacturing Find out why Manufacturing is such a great career choice. Featured Jobs: CNC Machinist / Programmer Franklin Park, IL Architectural Structural Engineer Spring Grove, IL Mechanical Engineer - Fluid Power Specialty Spring Grove, IL Fork Truck Repair Technician Franklin Park, IL We can help you today! Name* Phone Number* Company* Email* State/Country* Comment/Request* File upload Upload File NOTE: Please do not upload sensitive documents. For a secure file transfer please call 800-435-6621. Submit

Scot Forge produces guaranteed sound-centered step shafts, eccentric shafts, crank and rotor shafts from ferrous or non-ferrous materials with any combination of steps and shape dimensions. Forged Step Shafts, Eccentric Shafts & Crank Shafts Forged Step Shafts, Eccentric Shafts & Crank Shafts Advantages of Forged Crank Shafts, Step Shafts & Spindles Your heavy industrial applications deserve the best in strength and reliability. Our years of custom forging expertise allow us to manufacture custom forged crankshafts to meet the most exacting specifications. At Scot Forge, we produce guaranteed sound-centered forged step shafts, crankshafts and rotor shafts from ferrous or non-ferrous materials with any combination of round, square, rectangle or polygonal dimensions, concentric or eccentric configurations and tapers or custom shapes. Our skilled craftsmen produce precision-forged step shafts with dimensional uniformity that other shops can only achieve by rough machining. In addition, our extensive on-hand material inventory lets us manufacture your custom forged steel shafts with short lead times, so don't turn to castings or turned bar for your critical projects. Advantages of Forged Crank Shafts, Step Shafts & Spindles Your heavy industrial applications deserve the best in strength and reliability. Our years of custom forging expertise allow us to manufacture custom forged crankshafts to meet the most exacting specifications. At Scot Forge, we produce guaranteed sound-centered forged step shafts, crankshafts and rotor shafts from ferrous or non-ferrous materials with any combination of round, square, rectangle or polygonal dimensions, concentric or eccentric configurations and tapers or custom shapes. Our skilled craftsmen produce precision-forged step shafts with dimensional uniformity that other shops can only achieve by rough machining. In addition, our extensive on-hand material inventory lets us manufacture your custom forged steel shafts with short lead times, so don't turn to castings or turned bar for your critical projects. FORGE CONSULTATION & CUSTOM ENGINEERING FORGED PRODUCTS FORGE CONSULTATION & CUSTOM ENGINEERING FORGED PRODUCTS Scot Forge Advantages: Short times in the industry Wide range of stainless, carbon, and alloy steels Milling capabilities that bring the product closer to size at reasonable costs Quality controlled heat treating that produces a consistent product Testing capabilities to ensure quality and adhere to your requirements No minimum order quantities for prototypes and short-run situations Produce sizes that aren’t available in plate or bar stock Short times in the industry Wide range of stainless, carbon, and alloy steels Milling capabilities that bring the product closer to size at reasonable costs Quality controlled heat treating that produces a consistent product Testing capabilities to ensure quality and adhere to your requirements No minimum order quantities for prototypes and short-run situations Produce sizes that aren’t available in plate or bar stock Reduced Material & Costs - In addition, our step shaft forging capabilities provide significant cost and material savings when compared to machining a bar to a stepped shape. We can supply step shafts and spindles precision-forged with allowance or rough-machined, which can also include drilling or boring. Continuous Grain Flow & Improved Microstructure - This means your part will have finer grain size, which will reduce the chance of voids and enhance strength leading to better fatigue resistance. Step Shaft & Rotor Shaft Process Highlights The process begins when an entire piece is forged to the major diameter and a fuller tool is used to mark the next step. Then we forge that next step to a smaller diameter or taper to create a contour, while maintaining directional grain flow, thereby giving the part greater strength and fatigue resistance. Depending on the configuration of your part, our Clinton, Wis. and Spring Grove, Ill. plants can forge custom flanged-end shafts with heads that are upset in a variety of shapes, including single, tapered or multiple-diameter. Reduced Material & Costs - In addition, our step shaft forging capabilities provide significant cost and material savings when compared to machining a bar to a stepped shape. We can supply step shafts and spindles precision-forged with allowance or rough-machined, which can also include drilling or boring. Continuous Grain Flow & Improved Microstructure - This means your part will have finer grain size, which will reduce the chance of voids and enhance strength leading to better fatigue resistance. Step Shaft & Rotor Shaft Process Highlights The process begins when an entire piece is forged to the major diameter and a fuller tool is used to mark the next step. Then we forge that next step to a smaller diameter or taper to create a contour, while maintaining directional grain flow, thereby giving the part greater strength and fatigue resistance. Depending on the configuration of your part, our Clinton, Wis. and Spring Grove, Ill. plants can forge custom flanged-end shafts with heads that are upset in a variety of shapes, including single, tapered or multiple-diameter. Scot Forge Difference At Scot Forge, we know the importance of getting your parts on-time, as expected. However, for customers new to procuring forgings, ordering a forging that will meet all specifications for end-use applications may be a challenge, which is why finding a trusted supplier and partner is essential. Our employee-owners are here to ensure your project stays on track with our forgings by offering: Forge Design & Engineering Guidance Finished Machining Options Metallurgical Review, NDE & Destructive Testing Forged Products We offer many size forgings in both standard and unique geometries to meet your needs. Complex Shapes Bars Step Shafts, Eccentric Shafts & Rotor Shafts Hollows Hubs & Tooled Forgings Semi-Closed Die Discs & Blanks Pro Tip - Did you know near-net shapes can save you time and money? Oftentimes, a customer calls to order a disc, which they will later machine down to a more shaped part. By working with our technically trained sales team, you can get your finished product shape as close as possible to optimize your production process. We can help you today! Name* Phone Number* Company* Email* State/Country* Comment/Request* File upload Upload File NOTE: Please do not upload sensitive documents. For a secure file transfer please call 800-435-6621. Submit

Advantages Of Open Die Forging Process What Is Open Die Forging? Open die forging involves the shaping of heated metal parts between a top die attached to a ram and a bottom die attached to a hammer, anvil or bolster. Metal parts are worked at their appropriate temperatures, ranging from 500°F to 2400°F, and gradually shaped into the desired configuration through the skillful hammering or pressing of the workpiece. Difference between open die forging and closed die forging While impression or closed die forging confines the metal in dies, open die forging is distinguished by the fact that the metal is never completely confined or restrained in the dies. Most open die forgings are produced on flat dies. However, round swaging dies, V-dies, mandrels, pins and loose tools are also used depending on the desired part configuration and its size. Although the open die forging process is often associated with larger, simpler-shaped parts such as bars, blanks, rings, hollows or spindles, in fact it can be considered the ultimate option in "custom-designed" metal components. High-strength, long-life parts optimized in terms of both mechanical properties and structural integrity are today produced in sizes that range from a few pounds to hundreds of tons in weight. In addition, advanced forge shops now offer shapes that were never before thought capable of being produced by the open die forging process. spindle-shaped part open die forging process: 1. Starting stock cut to size by weight is first rounded, then upset to achieve structural integrity and directional grain flow. 2. A "fuller" tool marks the starting "step" locations on the fully rounded workpiece. 3. Forging or "drawing" down the first step to size. The second step is drawn down to size. 4. Note how the part elongates with each process step as the material is being displaced. 5. "Planishing" the rough forging for a smoother surface finish and to keep stock allowance to a minimum. Go to next section: The seamless rolled ring forging process Scot Forge Difference At Scot Forge, we know the importance of getting your parts on-time, as expected. However, for customers new to procuring forgings, ordering a forging that will meet all specifications for end-use applications may be a challenge, which is why finding a trusted supplier and partner is essential. Our employee-owners are here to ensure your project stays on track with our forgings by offering: Forge Design & Engineering Guidance Finished Machining Options Metallurgical Review, NDE & Destructive Testing Quality Assurance Scot Forge is proud to be ISO 9001:2015 and AS9100D certified , and our team is committed to providing outstanding customer satisfaction. Further pursuance of aerospace products has led to NADCAP accreditation in both Heat Treatment for nickel material and Nondestructive Testing. Every Scot Forge customer gets placed with a qualified team that will guide each nickel forging delivered from the inquiry stage to order placement, expediting and shipping. Forged Products We offer many size forgings in both standard and unique geometries to meet your needs. Complex Shapes Bars Step Shafts, Eccentric Shafts & Rotor Shafts Hollows Hubs & Tooled Forgings Semi-Closed Die Discs & Blanks We can help you today! Name* Phone Number* Company* Email* State/Country* Comment/Request* File upload Upload File NOTE: Please do not upload sensitive documents. For a secure file transfer please call 800-435-6621. Submit

Hardness Conversion & Alloy Charts Approximate hardness conversion for non-austenitic steels.* BRINELL ROCKWELL VICKERS KNOOP Indentation Dia. (mm) HBW 10/3000 HRC HRB HV (HRC range) HV (HRB range) HK (HRC range) HK (HRB range) Ultimate Tensile Strength (ksi) 2.45 627 58.6 - 664 - 703 - 346.2 2.5 601 57.3 - 638 - 677 - 328.9 2.55 578 56.1 - 615 - 652 - 313.7 2.6 555 54.8 - 591 - 627 - 298.4 2.65 534 53.5 - 569 - 603 - 287.5 2.7 514 52.2 - 548 - 579 - 274.5 2.75 495 50.9 - 528 - 556 - 263.4 2.8 477 49.6 - 508 - 533 - 251.8 2.85 461 48.3 - 491 - 513 - 241.7 2.9 444 46.9 - 472 - 492 - 230.4 2.95 429 45.7 - 456 - 474 - 219.8 3 415 44.4 - 440 - 456 - 211.5 3.05 401 43.1 - 425 - 439 - 201.8 3.1 388 41.8 - 411 - 424 - 192.7 3.15 375 40.5 - 397 - 408 - 184.4 3.2 363 39.3 - 383 - 394 - 177.6 3.25 352 38.1 - 372 - 382 - 170.4 3.3 341 36.8 - 360 - 369 - 164.1 3.35 331 35.7 - 349 - 358 - 158.2 3.4 321 34.4 - 338 - 347 - 153 3.45 311 33 - 327 - 334 - 149 3.5 302 32 - 318 - 327 - 146.3 3.55 293 30.8 - 308 - 317 - 140.6 3.6 285 29.7 - 300 - 309 - 137.6 3.65 277 28.6 - 291 - 301 - 134 3.7 269 27.4 - 283 - 293 - 130.1 3.75 262 26.3 - 275 - 286 - 127 3.8 255 25.2 - 268 - 279 - 123.8 3.85 248 24.1 - 261 - 272 - 119.7 3.9 241 22.9 100 254 241 266 253 116.3 3.95 235 21.8 99 247 235 260 248 114.3 4 229 20.8 98 241 229 254 242 110 4.05 223 19.7 97 238 223 251 237 105.5 4.1 217 - 96 - 217 - 232 102.3 4.15 212 - 95 - 212 - 227 100.7 4.2 207 - 95 - 207 - 222 98.8 4.25 201 - 93 - 201 - 217 94.8 4.3 197 - 93 - 197 - 213 92.8 4.35 192 - 92 - 192 - 208 90.8 4.4 187 - 90 - 187 - 202 89.4 4.45 183 - 89 - 183 - 198 88.6 4.5 179 - 89 - 179 - 194 87.5 4.55 174 - 87 - 174 - 189 85 4.6 170 - 86 - 170 - 185 83.3 4.65 167 - 85 - 167 - 182 82.5 4.7 163 - 84 - 163 - 178 81.3 4.75 159 - 83 - 159 - 173 80 4.8 156 - 82 - 156 - 170 77 4.85 152 - 81 - 152 - 166 72.7 4.9 149 - 80 - 149 - 163 71.3 4.95 146 - 79 - 146 - 160 69.7 5 143 - 78 - 143 - 157 68.7 5.05 140 - 76 - 140 - 152 67.5 5.1 137 - 75 - 137 - 151 66 5.15 134 - 74 - 134 - 147 64.7 5.2 131 - 73 - 131 - 144 63.5 5.25 128 - 71 - 128 - 141 62.3 5.3 126 - 70 - 126 - 139 61.5 5.35 123 - 69 - 123 - 137 60 5.4 121 - 68 - 121 - 135 59 5.45 118 - 66 - 118 - 132 57.5 Common Carbon Steel Composition Common Alloy Steel Composition Common Tool Steel Composition Common Stainless Steel Composition Common Nickel Alloy Composition Common Copper Alloy Composition Common Aluminum Composition Common Aluminum Composition Maximum weight % unless a range or minimum is shown. Categories Al Si Fe Cu Mn Mg Cr Ni Zu Zr Ti Other Each Other Total Source 1100 99.00 min 0.95 (Si + Fe) - 0.05-0.20 0.05 - - - 0.1 - - 0.05 0.15 ASTM B247-02a 2014 rem (1) 0.50-1.2 0.7 3.9-5.0 0.40-1.2 0.20-0.8 0.1 - 0.25 - 0.15 0.05 0.15 ASTM B247-02a 2024 rem (1) 0.5 0.5 3.8-4.9 0.30-0.9 1.2-1.8 0.1 - 0.25 - 0.15 0.05 0.15 AMS 4120R 2219 rem (1) 0.2 0.3 5.8-6.8 0.20-0.40 0.02 - - 0.1 0.10-0.25 0.02-0.10 0.05 (2) 0.15 (2) ASTM B247-02a 5083 rem (1) 0.4 0.4 0.1 0.40-1.0 4.0-4.9 0.05-0.25 - 0.25 - 0.15 0.05 0.15 ASTM B247-02a 6061 rem (1) 0.40-0.8 0.7 0.15-0.40 0.15 0.8-1.2 0.04-0.35 - 0.25 - 0.15 0.05 0.15 ASTM B247-02a 7050 rem (1) 0.12 0.15 2.0-2.6 0.1 1.9-2.6 0.04 - 5.7-6.7 0.08-0.15 0.06 0.05 0.15 ASTM B247-02a 7075 rem (1) 0.4 0.5 1.2-2.0 0.3 2.1-2.9 0.18-0.28 - 5.1-6.1 - 0.2 0.05 0.15 ASTM B247-02a 7175 rem (1) 0.15 0.2 1.2-2.0 0.1 2.1-2.9 0.18-0.28 - 5.1-6.1 - 0.1 0.05 0.15 ASTM B247-02a (1) remainder (2) Vanadium, 0.05 - 0.15 Disclaimer:Although the information set forth herein is believed to be correct, Scot Forge makes no recommendation, or offers no warranty of any kind, with respect to the subject matter or its accuracy. Scot Forge specifically disclaims all warranties, expressed, implied or otherwise, including, without limitation, all warranties of merchantability, fitness or suitability for a particular purpose or application. Common Copper Alloy Composition Maximum weight % unless a range or minimum is shown. Categories C10100 C11000 C15000 C18000 C18100 C18150 C18200 C61400 C63000 C63200 C70600 C71500 C72420 Cu (incl Ag) 99.99 min. 99.9 min. 99.8 min. rem (2) 98.7 min. rem (2) rem (2) rem (2) rem (2) rem (2) rem (2) rem (2) rem (2) Cr - - - 0.10-0.6 0.40-1.0 0.50-1.5 0.6-1.2 - - - - - 0.5 Fe 0.001 - - 0.15 - - 0.1 1.5-3.5 2.0-4.0 3.5-4.3 1.0-1.8 0.40-1.0 0.7-1.2 Ni (incl Co) 0.001 - - 2.0-3.0 2.0-3.0 - - - 4.0-5.5 4.0-4.8 9.0-11.0 29.0-33.0 13.5-16.5 Si - - - 0.40-0.8 - 0.1 0.1 - 0.25 0.1 - - - Zr - - 0.10-0.20 - 0.08-0.20 0.05-0.25 - - - - - - - Al - - - - - - - 6.0-8.0 9.0-11.0 8.7-9.5 - - 1.0-2.0 Mn 0.0005 - - - - - - 1 1.5 1.2-2.0 1 1 3.5-5.5 Sn 0.0002 - - - - - - - 0.2 - - - - Zn 0.0001 - - - - - - 0.2 0.3 - 1 1 - Other -1 - Cu + sum of named elements, 99.9 min. Cu + sum of named elements, 99.5 min. Mg, 0.03-0.06; Cu + sum of named elements, 99.5 min. Cu + sum of named elements, 99.7 min. Pb, 0.05; Cu + sum of named elements, 99.5 min. P, 0.015; Pb, 0.01; Cu + sum of named elements, 99.5 min. Cu + sum of named elements, 99.5 min. Pb, 0.02; Cu + sum of named elements, 99.5 min.; Fe<=Ni Pb, 0.05; Cu + sum of named elements, 99.5 min., (1) Pb, 0.05; Cu + sum of named elements, 99.5 min., (1) Cu + sum of named elements, 99.75 min.; (1) Source UNS C10100 UNS C11000 UNS C15000 UNS C18000 UNS C18100 UNS C18150 UNS C18200 UNS C61400 UNS C63000 UNS C63200 UNS C70600 UNS C71500 UNS C72420 (1) See specification for additional residual element requirements (2) remainder Disclaimer:Although the information set forth herein is believed to be correct, Scot Forge makes no recommendation, or offers no warranty of any kind, with respect to the subject matter or its accuracy. Scot Forge specifically disclaims all warranties, expressed, implied or otherwise, including, without limitation, all warranties of merchantability, fitness or suitability for a particular purpose or application. Common Nickel Alloy Composition Maximum weight % unless a range or minimum is shown. Category 200 201 400 K500 600 625 718 800 825 901 C276 Ni 90.0 min 99.0 min 63-70 (3) 63.0 min (3) 72.0 min. rem (2) 50.00-55.00 30.0-35.0 38.0-46.0 40.00-45.00 rem (2) C 0.15 0.02 0.2 0.18 0.15 0.1 0.08 0.1 0.05 0.1 0.02 Mn 0.35 0.35 2 1.5 1 0.5 0.35 1.5 1 0.5 1 Si 0.35 0.35 0.5 0.5 0.5 0.5 0.35 1 0.5 0.4 0.08 P - - 0.02 - - 0.015 0.015 - 0.03 0.03 0.03 S 0.01 0.01 0.015 0.01 0.015 0.015 0.015 0.015 0.03 0.03 0.03 Cr - - - - 14.00-17.00 20.00-23.00 17.00-21.00 19.0-23.0 19.5-23.5 11.00-14.00 14.5-16.5 Mo - - - - - 8.00-10.00 2.80-3.30 - 2.5-3.5 5.00-6.50 15.0-17.0 Cb - - - - - 3.15-4.15 4.75-5.50 - - - - Ta - - - - - 0.05 0.05 - - - - Co - - - - - 1 1 - - 1 2.5 Ti - - - 0.35-0.85 - 0.4 0.65-1.15 0.15-0.60 0.6-1.2 2.70-3.10 - Ai - - 0.5 2.30-3.15 0.4 0.4 0.20-0.80 0.15-0.60 0.2 0.35 - Fe 0.4 0.4 2.5 2 6.00-10.00 5 rem (2) rem (2) rem (2) rem (2) 4.0-7.0 Other - Cu, 0.25 max. Pb, 0.006; Sn, 0.006; Zn, 0.02 Cu, 27.0-33.0 (4) Cu, 0.50 -1 B, 0.006; Cu, 0.30, (1) Cu, 0.75 Cu, 1.5-3.0 B, 0.010-0.020; Cu, 0.50; (1) V, 0.35; W, 3.0-4.5 Source UNS N02200 UNS N02201 QQ-N-281D QQ-N-286F(SH) AMS 5665L AMS 5666E AMS 5662K UNS N08800 UNS N08825 AMS 5661E UNS N10276 (1) See specification for additional residual element requirements (2) remainder (3) Ni + Co (4) Cu + Ag Disclaimer:Although the information set forth herein is believed to be correct, Scot Forge makes no recommendation, or offers no warranty of any kind, with respect to the subject matter or its accuracy. Scot Forge specifically disclaims all warranties, expressed, implied or otherwise, including, without limitation, all warranties of merchantability, fitness or suitability for a particular purpose or application. Common Stainless Steel Composition Maximum weight % unless a range or minimum is shown. Categories 304 304L 316 316L 317 321 347 403 405 410 416 420 431 440A 440C Duplex 2205 13-8 Mo PH 15-5 PH 17-4 PH 254 SMO® Nitronic 50 Nitronic 60 Ferralium® 255 A286 Types: S-A S-A S-A S-A S-A S-A S-A S-M S-F S-M S-M S-M S-M S-M S-M S-D S-M-PH S-M-PH S-M-PH S-A S-A S-A S-D S-A-PH C 0.08 0.03 0.08 0.03 0.08 0.08 0.08 0.15 0.08 0.15 0.15 0.15 min. 0.2 0.60-0.75 0.95-1.20 0.03 0.05 0.07 0.07 0.02 0.06 0.1 0.04 0.08 Mn 2 2 2 2 2 2 2 1 1 1 1.25 1 1 1 1 2 0.1 1 1 1 4.00-6.00 7.00-9.00 1.5 2 P 0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.04 0.04 0.04 0.06 0.04 0.04 0.04 0.04 0.03 0.008 0.04 0.04 0.03 0.04 0.04 0.04 0.025 S 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.15 min. 0.03 0.03 0.03 0.03 0.02 0.01 0.03 0.03 0.01 0.03 0.03 0.03 0.025 Si 1 1 1 1 1 1 1 0.5 1 1 1 1 1 1 1 1 0.1 1 1 0.8 1 3.50-4.50 1 1 Ni 8.00-10.50 8.00-12.00 10.00-14.00 10.00-14.00 11.00-15.00 9.00-12.00 9.00-13.00 - - - - - 1.25-2.50 - - 4.50-6.50 7.50-8.50 3.50-5.50 3.00-5.00 17.50-18.50 11.50-13.50 8.00-9.00 4.50-6.50 24.00-27.00 Cr 18.00-20.00 18.00-20.00 16.00-18.00 16.00-18.00 18.00-20.00 17.00-19.00 17.00-19.00 11.50-13.00 11.50-14.50 11.50-13.50 12.00-14.00 12.00-14.00 15.00-17.00 16.00-18.00 16.00-18.00 22.0-23.0 12.25-13.25 14.00-15.50 15.0-17.5 19.50-20.50 20.50-23.50 16.00-18.00 24.0-27.0 13.50-16.00 Mo - - 2.00-3.00 2.00-3.00 3.00-4.00 - - - - - 0.6 - - 0.75 0.75 3.00-3.50 2.00-2.50 - - 6.00-6.50 1.50-3.00 - 2.9-3.9 1.00-1.50 V - - - - - - - - - - Zr 0.60 max. - - - - - - - - - 0.10-0.30 - - 0.10-0.50 Cu - - - - - - - - - - - - - - - - - 2.50-4.50 3.00-5.00 0.50-1.00 - - 1.50-2.50 - Other - - - - - Ti, 5xC min. Cb-Ta, 10xC min. - Al, 0.10-0.30 - - - - - - N, 0.14-0.20 Al, 0.90-1.35 (4) Cb, 0.15-0.45 Cb, 0.15-0.45 N, 0.180-0.220 Cb, 0.10-0.30; N, 0.20-0.40 N, 0.08-0.18 N, 0.10-0.25 Ti, 1.90-2.35; B, 0.003-0.010; Co, 1.00; Al, 0.35 Source SAE J405 JAN89 SAE J405 JAN89 SAE J405 JAN89 SAE J405 JAN89 SAE J405 JAN89 SAE J405 JAN89 SAE J405 JAN89 SAE J405 JAN89 SAE J405 JAN89 SAE J405 JAN89 SAE J405 JAN89 SAE J405 JAN89 SAE J405 JAN89 SAE J405 JAN89 SAE J405 JAN89 UNS S32205 UNS S13889 UNS S15500 UNS S17400 UNS S31254 UNS S20910 UNS S21800 UNS S32550 AMS 5525G (1) See specification for additional residual element requirements Disclaimer:Although the information set forth herein is believed to be correct, Scot Forge makes no recommendation, or offers no warranty of any kind, with respect to the subject matter or its accuracy. Scot Forge specifically disclaims all warranties, expressed, implied or otherwise, including, without limitation, all warranties of merchantability, fitness or suitability for a particular purpose or application. Common Alloy Steel Composition Maximum weight % unless a range or minimum is shown. Categories 4140 4142 4145 4150 4150 RES 4320 4330V 4340 4350 4620 4820 6150 8620 8630 8822 9310 9850 52100 EX55 HY80 HY100 A182 F1 A182 F5 A182 F11 A182 F12 A182 F22 A182 F91 A336 F1 A336 F22a A508 Cl.2 A508 Cl.3 MIL-S-23284 Cl 1 MIL-S-23284 Cl 2 Nitralloy "N" Nitralloy 135 C 0.38-0.43 0.40-0.45 0.43-0.48 0.48-0.53 0.48-0.53 0.17-0.22 0.28-0.33 0.38-0.43 0.48-0.55 0.17-0.22 0.18-0.23 0.48-0.53 0.18-0.23 0.28-0.33 0.20-0.25 0.07-0.13 0.48-0.53 0.98-1.10 0.12-0.17 0.12-0.18 0.12-0.20 0.28 0.15 0.10-0.20 (2) 0.10-0.20 0.05-0.15 0.08-0.12 0.30-0.30 0.05-0.15 0.27 0.25 0.28 0.26 0.22-0.27 0.38-0.43 Mn 0.75-1.00 0.75-1.00 0.75-1.00 0.75-1.00 0.75-1.30 (1) 0.45-0.65 0.75-1.00 0.60-0.80 0.60-0.80 0.45-0.65 0.50-0.70 0.70-0.90 0.70-0.90 0.70-0.90 0.75-1.00 0.40-0.70 0.70-0.90 0.25-0.45 0.70-1.00 0.10-0.40 0.10-0.40 0.60-0.90 0.30-0.60 0.30-0.80 0.30-0.80 0.30-0.60 0.30-0.60 0.60-0.80 0.30-0.60 0.50-1.00 1.20-1.50 0.15-0.45 0.15-0.45 0.50-0.70 0.50-0.80 P 0.03 0.03 0.03 0.03 0.035 0.03 0.025 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.025 0.04 0.025 0.025 0.015 0.015 0.045 0.03 0.04 0.04 0.04 0.02 0.025 0.025 0.025 0.025 0.02 0.02 0.035 0.025 S 0.04 0.04 0.04 0.04 0.04 0.04 0.025 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.025 0.04 0.025 0.025 0.008 0.008 0.045 0.03 0.04 0.04 0.04 0.01 0.025 0.025 0.025 0.025 0.015 0.015 0.04 0.025 Si 0.15-0.35 0.15-0.35 0.15-0.35 0.15-0.35 0.15-0.35 0.15-0.35 0.15-0.35 0.15-0.35 0.15-0.35 0.15-0.35 0.15-0.35 0.15-0.35 0.15-0.35 0.15-0.35 0.15-0.35 0.15-0.35 0.20-0.35 0.15-0.35 0.20-0.35 0.15-0.35 0.15-0.35 0.15-0.35 0.5 0.50-1.00 0.10-0.60 0.5 0.20-0.50 0.20-0.35 0.5 0.15-0.40 0.15-0.40 0.35 0.35 0.15-0.35 0.20-0.40 Ni - - - - 0.25 1.65-2.00 1.65-2.00 1.65-2.00 1.65-2.00 1.65-2.00 3.25-3.75 - 0.40-0.70 0.40-0.70 0.40-0.70 3.00-3.50 0.85-1.15 - 1.65-2.00 2.50-3.25 2.75-3.50 - 0.5 - - - 0.4 - - 0.50-1.00 0.40-1.00 2.75-3.50 2.75-3.25 3.25-3.75 0.25 Cr 0.80-1.10 0.80-1.10 0.80-1.10 0.80-1.10 0.80-1.10 0.40-0.60 0.75-1.00 0.70-0.90 0.70-0.90 - - 0.80-1.10 0.40-0.60 0.40-0.60 0.40-0.60 1.00-1.40 0.70-0.90 1.30-1.60 0.45-0.65 1.35-1.80 1.35-1.80 - 4.0-6.0 1.00-1.50 0.80-1.25 2.00-2.50 8.0-9.5 - 2.00-2.50 0.25-0.45 0.25 0.5 0.5 1.00-1.35 1.40-1.80 Mo 0.15-0.25 0.15-0.25 0.15-0.25 0.15-0.25 0.15-0.25 0.20-0.30 0.35-0.50 0.20-0.30 0.20-0.30 0.20-0.30 0.20-0.30 - 0.15-0.25 0.15-0.25 0.30-0.40 0.08-0.15 0.20-0.30 - 0.65-0.80 0.30-0.60 0.30-0.60 0.44-0.65 0.44-0.65 0.44-0.65 0.44-0.65 0.87-1.13 0.85-1.05 0.40-0.60 0.90-1.10 0.55-0.70 0.45-0.60 0.25-0.60 0.25-0.60 0.20-0.30 0.30-0.40 V - - - - - - 0.05-0.10 - - - - 0.15 min. - - - - - - - 0.03 0.03 - - - - - 0.18-0.25 - - 0.05 0.05 0.08 0.05 - - Cu - - - - 0.35 - 0.35 max. - - - - - - - - 0.35 - - - 0.25 0.25 - - - - - - - - - - - - - 0.35 Other - - - - - - - - - - - - - - - B, 0.001 max. - - - Ti, 0.02 max Ti, 0.02 max - - - - - Cb, 0.06-0.10; N, 0.03-0.07; Al, 0.04 max. - - - - P+S, 0.03 max (3) P+S, 0.03 max (3) Al, 0.95-1.30 Al, 0.95-1.30 Source SAE J404 APR94 SAE J404 APR94 SAE J404 APR94 SAE J404 APR94 ASTM A322-91 w/modifications SAE J404 APR94 AMS 6427H SAE J404 APR94 SAE J404 APR94 w/modifications SAE J404 APR94 SAE J404 APR94 SAE J404 APR94 SAE J404 APR94 SAE J404 APR94 SAE J404 APR94 AMS 6260M SAE J1249 APR94 SAE J404 APR94 - MIL-S-23009C(SH) MIL-S-23009C(SH) ASTM A182-98a ASTM A182-98a ASTM A182-98a ASTM A182-98a ASTM A182-98a ASTM A182-98a ASTM A336-97 ASTM A336-97 ASTM A508-95 ASTM A508-95 MIL-S-23284A(SH) MIL-S-23284A(SH) ASTM A355-89 AMS 6470J (1) Several different Mn ranges are available. Contact your Scot Forge sales representative for additional information. (2) ASTM A182 F11, Class 1 is restricted to 0.05-0.15 C and 0.30-0.60 Mn (3) See specification for additional residual element requirements Disclaimer: Although the information set forth herein is believed to be correct, Scot Forge makes no recommendation, or offers no warranty of any kind, with respect to the subject matter or its accuracy. Scot Forge specifically disclaims all warranties, expressed, implied or otherwise, including, without limitation, all warranties of merchantability, fitness or suitability for a particular purpose or application. Common Carbon Steel Composition Maximum weight % unless a range or minimum is shown. Categories 1018 1020 1021-2 1026-3 1029 1030 1035 1040 1045 1050 1055 1060 1065 1070 1080 1117 1141 1146 ABS Grade 2 A-105 15B22 MOD 1545 A350 LF2 C 0.15-0.20 0.18-0.23 0.18-0.23 0.22-0.28 0.25-0.31 0.28-0.34 0.32-0.38 0.37-0.44 0.43-0.50 0.48-0.55 0.50-0.60 0.55-0.65 0.60-0.70 0.65-0.75 0.75-0.88 0.14-0.20 0.37-0.45 0.42-0.49 0.35 0.35 0.20-0.25 0.42-0.53 0.35 Mn 0.60-0.90 0.30-0.60 0.60-0.90 0.60-0.90 0.60-0.90 0.60-0.90 0.60-0.90 0.60-0.90 0.60-0.90 0.60-0.90 0.60-0.90 0.60-0.90 0.60-0.90 0.60-0.90 0.60-0.90 1.00-1.30 1.35-1.65 0.70-1.00 1.35 0.60-1.05 0.80-1.10 1.00-1.25 0.60-1.35 P 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.05 0.035 0.04 0.045 0.035 S 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.08-0.13 0.08-0.13 0.08-0.13 0.05 0.04 0.05 0.20-0.30 0.04 Si -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 - 0.10-0.35 0.15-0.35 0.1 0.15-0.30 Ni - - - - - - - - - - - - - - - - - - - 0.4 - 0.25 0.4 Cr - - - - - - - - - - - - - - - - - - - 0.3 - 0.25 0.3 Mo - - - - - - - - - - - - - - - - - - - 0.12 - 0.1 0.12 V - - - - - - - - - - - - - - - - - - - 0.05 - - 0.05 Cu - - - - - - - - - - - - - - - - - - - 0.4 - - 0.4 Other - - - - - - - - - - - - - - - - - - - Cb, 0.02 max.; Cu+Ni+Mo, 1.00 max; Cr+Mo, 0.32 max. B, 0.0005-0.0030 - Cb, 0.02 max.; Cu+Ni+Cr+V+Mo, 1.00 max; Cr+Mo, 0.32 max. Source SAE J403 MAY94 SAE J403 MAY94 SAE J403 MAY94 SAE J403 MAY94 SAE J403 MAY94 SAE J403 MAY94 SAE J403 MAY94 SAE J403 MAY94 SAE J403 MAY94 SAE J403 MAY94 SAE J403 MAY94 SAE J403 MAY94 SAE J403 MAY94 SAE J403 MAY94 SAE J403 MAY94 SAE J403 MAY94 SAE J403 MAY94 SAE J403 MAY94 ABS, Part 2, 1997 ASTM A105-96 CAT 1E0621-15 Custom grade ASTM A350-97 (1) Not required by specification but may be specified Disclaimer: Although the information set forth herein is believed to be correct, Scot Forge makes no recommendation, or offers no warranty of any kind, with respect to the subject matter or its accuracy. Scot Forge specifically disclaims all warranties, expressed, implied or otherwise, including, without limitation, all warranties of merchantability, fitness or suitability for a particular purpose or application. Common Tool Steel Composition Maximum weight % unless a range or minimum is shown. Categories D2 H13 L6 C 1.40-1.60 0.32-0.45 0.65-0.75 Mn 0.10-0.60 0.20-0.60 0.25-0.80 P 0.03 0.03 0.03 S 0.03 0.03 0.03 Si 0.10-0.60 0.80-1.25 0.10-0.50 Ni - - 1.25-2.00 Cr 11.00-13.00 4.75-5.50 0.60-1.20 Mo 0.70-1.20 1.10-1.75 0.5 V 0.50-1.10 0.80-1.20 - Cu - - - Other - - - Source ASTM A681-94 ASTM A681-94 ASTM A681-94 Disclaimer: Although the information set forth herein is believed to be correct, Scot Forge makes no recommendation, or offers no warranty of any kind, with respect to the subject matter or its accuracy. Scot Forge specifically disclaims all warranties, expressed, implied or otherwise, including, without limitation, all warranties of merchantability, fitness or suitability for a particular purpose or application. Scot Forge Difference At Scot Forge, we know the importance of getting your parts on-time, as expected. However, for customers new to procuring forgings, ordering a forging that will meet all specifications for end-use applications may be a challenge, which is why finding a trusted supplier and partner is essential. Our employee-owners are here to ensure your project stays on track with our forgings by offering: Forge Design & Engineering Guidance Finished Machining Options Metallurgical Review, NDE & Destructive Testing Forged Products We offer many size forgings in both standard and unique geometries to meet your needs. Complex Shapes Bars Step Shafts, Eccentric Shafts & Rotor Shafts Hollows Hubs & Tooled Forgings Semi-Closed Die Discs & Blanks Pro Tip - Did you know near-net shapes can save you time and money? Oftentimes, a customer calls to order a disc, which they will later machine down to a more shaped part. By working with our technically trained sales team, you can get your finished product shape as close as possible to optimize your production process. We can help you today! Name* Phone Number* Company* Email* State/Country* Comment/Request* File upload Upload File NOTE: Please do not upload sensitive documents. For a secure file transfer please call 800-435-6621. Submit

Starting as a Chicago small forge shop in 1893, today Scot Forge can forge parts weighing up to 300,000 lbs. and roll seamless rings up to 252 in diameter. Scot Forge History From Humble Beginnings Scot Forge started from humble beginnings with four brothers, looking for a better future, who traveled from the Shetland Islands in Scotland to America. They found their success in the steel industry and opened a small, six-man hammer forge shop in Chicago in 1893, under the name A. Kropp Forge. The Chicago area was booming in the 1890s, but by mid-decade a financial panic overtook the nation and in 1914, the company was bought by a group of Ryerson employees and renamed Kruse Forgings. Then, two years later, the name was changed to Atlas Forge partly as a marketing endeavor so the company would be first in the phonebook - listing are alphabetical – and by 1919, Atlas Forge moved to Cicero, Illinois. More than 60 years later a new greenfield manufacturing plant was built in Clinton, Wisconsin. This unusual plant location was due to the Cicero plant growth being hindered by a stationary noise law in Illinois. At this point, in 1977, the company name would change again to Scot Forge and a Scottish highlander became part of the corporate logo. Along with the new name came a unique sales promotional tool – the wearing of tartan apparel by the personnel. Continued growth created a need for a third manufacturing plant to be built in Spring Grove, Illinois, which became the permanent headquarters for Scot Forge. Additionally, in 1978 the owning family decided to sell the company to the Scot Forge employees starting the Employee Stock Ownership Plan (ESOP). The company continued to grow from 1985 to 1997. The Cicero plant moved to Franklin Park, Illinois, and Scot Forge formed two partnerships that turned into join ventures – Ringmasters and North American Forgemasters (NAF). Today, Scot Forge operates with more than 1.3 million sq.ft. of manufacturing space between the five plants and we ship more than 250 million lbs. of forgings annually. We are proud to be a 100% employee-owned manufacturer of custom, open die forgings and seamless rolled rings. In 1893, The A. Kropp Forge Company was little more than a blacksmith shop, where workers performed all tasks by hand. The Chicago area was booming in the 1890s, but by mid-decade a financial panic overtook the nation. Business did not recover until the outbreak of World War II. Demand continued after the war and into the Korean War in the early 1950s. This photo shows one of the large hammers placed into service. Prior to the use of modern, mobile manipulators and hydraulic presses, forging work was done by hand, with spider-like manual manipulating tools. This picture taken of Scot Forge employees in the Cicero Plant, shows that workers had to be strong, hardy and filled with stamina to handle the demands of the physical labor. The addition of this 8,000 lb. hammer with the innovative rotator allowed Scot Forge to enter the forged round bar market with the steel service centers. Plant and office staff pose for this 1948 photo. A. Kropp and Company had been incorporated as the Kruse Forgings company in 1914 and the name was changed to Atlas Forging Company in 1916. It wouldn't be known as Scot Forge Company until 1978, coinciding with the institution of the Employee Stock Ownership Plan (ESOP). Why Plaid? Well, as it turns out, Pete “Spike” Georgeson ordered one tartan jacket to help him get noticed at a luncheon… and it worked! So well in fact, that he decided he needed to order a couple more jackets, so he asked for a swatch of every tartan to decide what to order. Somewhere along the line, the tailor thought he said one jacket in every tartan. Rather than returning all of the jackets Pete decided to give them to his sales team and the rest is history. Discover More About Scot Forge Our Customer Commitment With every order we process, products we forge and quality tests we conduct, our goal is to exceed customer expectations in every way possible. Our Unique Culture Discover our spirit. Learn about our unique culture. Manufacturing Facilities Customized equipment and creative operating techniques at multiple locations enable us to manufacture forged products that conform to your exact specifications. Current Opportunities At Scot Forge, every employee-owner is dedicated to achieving the goal of total customer satisfaction by safely supplying the highest-quality forgings and services possible. Press Releases and Company News See what’s new and exciting at Scot Forge. Christmas Cards See how Scot Forge spreads holiday cheer. Scot Forge Difference At Scot Forge, we know the importance of getting your parts on-time, as expected. However, for customers new to procuring forgings, ordering a forging that will meet all specifications for end-use applications may be a challenge, which is why finding a trusted supplier and partner is essential. Our employee-owners are here to ensure your project stays on track with our forgings by offering: Forge Design & Engineering Guidance Finished Machining Options Metallurgical Review, NDE & Destructive Testing Quality Assurance Scot Forge is proud to be ISO 9001:2015 and AS9100D certified , and our team is committed to providing outstanding customer satisfaction. Further pursuance of aerospace products has led to NADCAP accreditation in both Heat Treatment for nickel material and Nondestructive Testing. Every Scot Forge customer gets placed with a qualified team that will guide each nickel forging delivered from the inquiry stage to order placement, expediting and shipping. Forged Products We offer many size forgings in both standard and unique geometries to meet your needs. Complex Shapes Bars Step Shafts, Eccentric Shafts & Rotor Shafts Hollows Hubs & Tooled Forgings Semi-Closed Die Discs & Blanks We can help you today! Name* Phone Number* Company* Email* State/Country* Comment/Request* File upload Upload File NOTE: Please do not upload sensitive documents. For a secure file transfer please call 800-435-6621. Submit

Scot Forge Christmas Card 2022 Click Play Below to Enjoy the Show! From all of the employee-owners at Scot Forge, Merry Christmas and Happy New Year! Scroll down to see the Sales Team Cast and Crew Andrew Sieck Snow Machine Operator Sales Account Manager Aust Schwenn Master Ribbon Curler Sales Account Manager Axel Stromberg Anti-Scrooge Officer Inside Sales Manager Bonnie Kaufman Reindeer Stable Manager Administrative Coordinator Brandon Shaver Twinkle Light Manager Sales Account Manager - Aerospace Brandon Wheeler Christmas Cookie Quality Inspector Snow Machine Operator Brent Blackowicz Reindeer Therapist Sales Segment Lead Candice Leistner Christmas Cheer Expert Sales and Operations Financial Analyst Chris Fortier Rudolph’s Nose Shiner Regional Sales Manager Chris Willger Ice Castle Architect Technical Estimator Devon Dupuy Santa’s Psychiatrist Customer Care Specialist Dusty Henningfeld Lead Eggnog Pourer Sales Account Manager Gail Tarrant Christmas Carol Composer Sales Account Manager George Olsen Jack-In-The-Box Tester Technical Estimator Jason Artner Christmas Light Untangler Director of Aerospace Services Jeff Krueger Main North Pole Contact Executive Director Sales Jim Fitzgerald Gingerbread House Engineer Sales Engineer - Military & Defense Jim Merkel Yo-Yo Tester Executive Director Sales & Marketing Joel Grauer Christmas Tree Topper Regional Sales Manager John Cain Holiday Spirit Director CEO & Chairman of the Board John Fay Jingle Bell Tuner Sales Account Manager Jordyn King Lead Snowman Builder Sales & Operations Financial Analyst Josiah Sheedlo Santa’s Sleigh Engineer Sales Account Manager Ken Pedraza Toy Boat Technician Account Manager - Military & Defense Kevin Coughlin Official Stocking Stuffer Executive Director Sales Kristin Becker Reindeer Stable Manager Sales Account Manager - Aerospace Laura Diedrich Fruit Cake Tester Marketing & Communications Manager Loretta Boutot Nice List Verifier CFO Lynette Johnson Christmas Cheer Coordinator Customer Care Specialist Mark Brouwer Coal Distribution Lead Sales Development Lead Mary McNett Elf Benefit Coordinator Customer Care Specialist Matt Davis Toy Rocket Launcher Sales Engineer - Aerospace Services Matt Gray Lead Caroler Sales Account Manager Michelle Hall New Toy Development Digital Marketing Specialist Michelle Riedel Snowflake Design Manager Manager, Executive Office Operations Monica Marek Eggnog Testing Manager Graphic Designer Nate Zeien Paper Airplane Engineer Aerospace Industry Specialist Nick Hogan Christmas Card Deliverer Sales Account Manager Patrick Haraburda Christmas Cheer Expert Technical Estimator Rick Syverson Head Christmas Decoration Designer Sales Account Manager Riley Schmucker Candy Cane Striper Marketing Communications Specialist Rob Shaffer Yule Log Procurement Business Dev. & Supply Chain Lead - Texas Ron Hahn Snowman Engineer President & COO Ron Pohl Present Wrapping Specialist Technical Estimator Roy Stolzman Gumdrop Button Manager Sales Account Manager Sarah Marski Elf Costume Design Inside Sales Manager Sara Pekny Master Ribbon Curler Sales Segment Lead Stephanie Baidinger Hot Cocoa Mixologist Sales Account Manager Tim Britt Ice Skating Choreographer Industry Specialist - Military & Defense Trinette Peterson North Pole Security Receptionist/Switch Board Operator Tyler Nichols Toy Submarine Tester Account Manager - Military & Defense Will Fusinato Lead Popcorn Stringer Sales Training Coordinator From the Scot Forge team, thanks for watching! Share your favorite Scot Forge Christmastime moment and follow us on our social networks. We can help you today! Name* Phone Number* Company* Email* State/Country* Comment/Request* File upload Upload File NOTE: Please do not upload sensitive documents. For a secure file transfer please call 800-435-6621. Submit

TOUR THE FORGE Head Straight Into The Plant For A Short Tour Check out our short introduction video to learn more about Scot Forge! You can head straight into the plant for a short tour of things like forge, heat treat, torch cutting and more by selecting, Continue to Plant Tour. Back to Intro 2 3 4 5 6 7 8 9 10 11 12 1 1. Inventory 2. Forge Interview 3. Forge Masters 4. Presses 5. Ring Mill 6. Hammers 7. Bar Mill 8. Torch Cut 9. Heat Treat 10. Mechanical Testing Machining 8. NDT WELCOME TO THE SCOT FORGE PLANT TOUR With the most comprehensive, advanced forging facilities in the industry, our employee-owners are ready to show you around. This tour takes you through our entire operation from Inventory to Non-Destructive Testing. Your guides for this virtual tour are real Scot Forge employee-owners. Click on a map marker to visit out key production areas which are numbered in order of operation. Let's get started! A Ready Inventory of Materials Our extensive inventory of raw material allows for shorter lead times and quick reaction to market changes. We stock a wide variety of materials ranging from 4" billet to ingots exceeding 69" in diameter. As the nation's largest purchaser of bottom-poured ingots, Scot Forge has strong partnerships with globally recognized melt facilities, allowing us to offer custom-melt materials uniquely suited to your application. Forging Overview We've been forging well over a century—and through the years, our employee-owners have continued to innovate and find ways to add value for our customers. Today our comprehensive forging facilities can accommodate part weights from 1 lb. to 100,000 lbs. in a wide range of ferrous and non-ferrous materials. Expert Forging Consultation Services The Scot Forge Customer Value Engineering Team brings the knowledge of forging experts to work in your plant, helping you to achieve long-term cost reductions and improved lead times. Collaborating closely with customers, the team works to convert previous fabrications or castings into near-net shape forgings of higher quality. Open Die Presses and Upset Press Capabilities Featuring presses that are engineered and built in-house, our facilities offer unlimited flexibility and speed throughout the forging process. Eight open die hydraulic presses coupled with modern mobile manipulators and the latest in electronics and hydraulics produce a limitless variety of shapes and sizes in both ferrous and non-ferrous materials up to 100,000 lbs. The creativity and skill of our forgemasters allow the versatility to produce complex open and semi-closed die forgings. High-Tonnage Ring Mills Combined resources gives Scot Forge the ability to offer single-piece or high-volume quantities of rolled rings. The forging process produces rings with controlled grain flow, which gives strength and resistance to impact and fatigue not found in rings torch cut from plate, or rolled and welded. If you need rings in a hurry, Ringmasters, our joint venture in Wayne, Michigan, offers deliveries in as little as 5 business days. Forging Hammers and Tooling Combining pneumatic hammers with state-of-the-art heating and manipulating equipment, we can produce blank, ring, dumbbell, single and double hub forgings in a wide range of shapes and sizes. We have developed a unique system which combines hammers and a vast inventory in excess of 10,000 loose tools. Simple and complex custom forgings can be produced close to near net shape configurations without the quantity requirements of closed die. Hot Rolled Bar Mill with Sound-Centers Our well-equipped bar mill has dedicated planishing, cutting, heat treating, straightening, machining and testing equipment to ensure consistent high quality and fast turnaround times. Our unique Tartan Bars® are manufactured through a combination of the forging and planishing process, resulting in bars with a forged sound center, rolled bar surface quality and extremely tight dimensional tolerances. CNC Torch Cutting Combined resources gives Scot Forge the ability to offer single-piece or high-volume quantities of rolled rings. The forging process produces rings with controlled grain flow, which gives strength and resistance to impact and fatigue not found in rings torch cut from plate, or rolled and welded. If you need rings in a hurry, Ringmasters, our joint venture in Wayne, Michigan, offers deliveries in as little as 5 business days. IN-HOUSE HEAT TREATMENT Each Scot Forge facility houses its own heat treat department to provide normalizing, annealing, quenching, tempering, stress relieving, spheroidize annealing, solution annealing and straightening. Nine custom-design quenchant systems work in tandem with over 40 furnaces. Specialized material handling equipment enables us to heat treat parts up to 70' long or 252" in diameter, including vertical heat treatment up to 110" long. Our Spring Grove facility is accredited to the very stringent Nadcap® Heat Treating conformity assessment. Mechanical and Metallurgical Testing Through active participation in numerous industry associations, including ASTM, AGMA, FIA and the International Metallography Association, Scot Forge stays on the cutting edge of forging technology and advancement. Machining Capabilities Utilizing over 75 machining centers, Scot Forge can turn, mill or bore your parts as specified, with finishes ranging from 32 to 500 RMS. With over two dozen horizontal turret and engine lathes, we are able to turn shafts or bars up to 80" diameter, with lengths to 550" long. Boring capabilities are available to 30" I.D. by 300" long. Certified Non-destructive Testing Scot Forge staffs an inspection team of industry certified personnel trained to use the latest and most advanced equipment in the field. Our on-site NDT services utilize Magnetic Particle, Liquid Penetrant, and Ultrasonic Testing methods to guarantee your forgings meet the essential quality requirements. Our Spring Grove facility is accredited to the very stringent Nadcap® Nondestructive Testing conformity assessment. WELCOME TO THE SCOT FORGE PLANT TOUR With the most comprehensive, advanced forging facilities in the industry, our employee-owners are ready to show you around. Before getting started, please watch our "preview" video for a quick overview of our capabilities. When you're finished, click on the button to Continue to Plant Tour below. Continue to Plant Tour Scot Forge Difference At Scot Forge, we know the importance of getting your parts on-time, as expected. However, for customers new to procuring forgings, ordering a forging that will meet all specifications for end-use applications may be a challenge, which is why finding a trusted supplier and partner is essential. Our employee-owners are here to ensure your project stays on track with our forgings by offering: Forge Design & Engineering Guidance Finished Machining Options Metallurgical Review, NDE & Destructive Testing Quality Assurance Scot Forge is proud to be ISO 9001:2015 and AS9100D certified , and our team is committed to providing outstanding customer satisfaction. Further pursuance of aerospace products has led to NADCAP accreditation in both Heat Treatment for nickel material and Nondestructive Testing. Every Scot Forge customer gets placed with a qualified team that will guide each nickel forging delivered from the inquiry stage to order placement, expediting and shipping. Forged Products We offer many size forgings in both standard and unique geometries to meet your needs. Complex Shapes Bars Step Shafts, Eccentric Shafts & Rotor Shafts Hollows Hubs & Tooled Forgings Semi-Closed Die Discs & Blanks WELCOME TO THE SCOT FORGE PLANT TOUR With the most comprehensive, advanced forging facilities in the industry, our employee-owners are ready to show you around. Before getting started, please watch our "preview" video for a quick overview of our capabilities. When you're finished, click on the button to Continue to Plant Tour below. Continue to Plant Tour Intro Video Hey forging Fans! Start your tour here. Inventory Extensive inventory to handle all your parts needs Forge Overview The most advanced forging capabilities in the business Forge Master / Semi-Closed Die Delivering smarter solutions for customers Presses Eight high-speed open die presses plus upset press Ring Mill & Ring Stretcher/Sizer Four high-tonnage ring mills Hammers Pneumatic hammers, tooling add up to more options Bar Mill Delivering guaranteed sound-centered bars Torch Cutting Torch cutting high-quality special shapes and contours Heat Treat Complete in-house heat treat capabilities Mechanical Testing & Metallography Metallographic analysis and more Machining A full range of rough and finished machining options Nondestructive Testing & Quality Advanced NDE capabilities ensure top quality We can help you today! Name* Phone Number* Company* Email* State/Country* Comment/Request* File upload Upload File NOTE: Please do not upload sensitive documents. For a secure file transfer please call 800-435-6621. Submit

Working in the marine and offshore industries or supplying products for marine applications often requires ABS certification. Learn more about the ABS requirement flow down through the supply chain of a component and how to minimize you risks and costs. American Bureau of Shipping: ABS Certified Forging Facility Forgings For ABS: Cost & Risk Minimization Working in the marine and offshore industries or supplying products for marine applications often requires ABS certification. Understanding where in the manufacturing or construction process the certification is required and working with your suppliers can help you minimize costs and production delays while ensuring that your products obtain the certifications needed. ABS certification costs time and money. Certification inspectors are on-site at your facility during manufacturing, construction, or fabrication to verify that your processes meet the standards - and you pay for the time they are on-site. So, it’s important that you understand the Rule requirements for your product to identify the stages in your supply chain where inspection and certification should occur. By doing so, you’ll save your company time and money, and minimize the risk of your products not being certified. Some simple steps can provide you with cost and time savings. SHIPBUILDING FORGINGS ABS & MARINE FORGING ADVISEMENT The Scot Forge Advantage At Scot Forge, we are uniquely qualified to provide you with ABS-certified products and materials. We are one of the few U.S. companies that have been audited by the American Bureau of Shipping and APPROVED as a worldwide ABS forging supplier. Our technically trained sales staff has extensive experience manufacturing ABS-certified products and will partner with you to ensure that your part has all the requirements to ensure certification while minimizing time and costs. We are a custom manufacturer of open die forgings and seamless rolled rings, with the capability to forge parts up to 100,000 lbs. and roll rings up to 252” in diameter. From gear box repair to broken rudder stock, contact us at today see how we can help you with your marine part and get you out of dry dock and back in commission. Click here to download the Working with ABS Certifications PDF. Maritime Forgings: Joe's Success Story Forging a quicker solution to expedite ship repairs and avoid costly dry dock time Improved the efficiency of production Reduced the costs of certifying products Delivered on time to avoid excess dry dock time WHAT IS ABS? The American Bureau of Shipping (ABS) was chartered in 1862 to certify ship captains. Since then, it has been involved in developing and setting safety and quality standards for ships and offshore structures. ABS standards are recognized globally and are used to ensure that the materials, parts and components, and construction of vessels and marine equipment meet established safety standards. ABS works with the marine industry worldwide as they develop new technologies for constructing marine vessels and offshore structures, revising and updating its certifications to meet the changing industry needs. The Rules and Grades established by ABS for certification are written to provide standards for the design, construction, and periodic survey of marine vessels and offshore structures to promote their safe design and assembly. Materials, parts, and components used in the manufacture of marine vessels and structures must meet the set standards for the vessel or structure in which they will be used. Certifications are specified by the Rules, such as Steel Vessel Rules part 2-3-7/1, or MODU (mobile offshore drilling unit) Rules, or the material grade, such as Grade 2, or Grade 4C. The end use of the component determines the inspections and certifications required, as well as any requirements for inspections during manufacturing: Certain components used in the construction of the vessel or structure must be certified Some of those components must be certified (inspected) as they are being constructed or fabricated to verify that the construction meets ABS standards Some materials must be certified during manufacturing; this will minimize the need for additional certification during construction or fabrication Information about ABS certifications can be found at www.eagle.org . Scot Forge Difference At Scot Forge, we know the importance of getting your parts on-time, as expected. However, for customers new to procuring forgings, ordering a forging that will meet all specifications for end-use applications may be a challenge, which is why finding a trusted supplier and partner is essential. Our employee-owners are here to ensure your project stays on track with our forgings by offering: Forge Design & Engineering Guidance Finished Machining Options Metallurgical Review, NDE & Destructive Testing Quality Assurance Scot Forge is proud to be ISO 9001:2015 and AS9100D certified , and our team is committed to providing outstanding customer satisfaction. Further pursuance of aerospace products has led to NADCAP accreditation in both Heat Treatment for nickel material and Nondestructive Testing. Every Scot Forge customer gets placed with a qualified team that will guide each nickel forging delivered from the inquiry stage to order placement, expediting and shipping. Forged Products We offer many size forgings in both standard and unique geometries to meet your needs. Complex Shapes Bars Step Shafts, Eccentric Shafts & Rotor Shafts Hollows Hubs & Tooled Forgings Semi-Closed Die Discs & Blanks We can help you today! Name* Phone Number* Company* Email* State/Country* Comment/Request* File upload Upload File NOTE: Please do not upload sensitive documents. For a secure file transfer please call 800-435-6621. Submit

Community Involvement Giving Back To Our Communities Shared goals are what Scot Forge is all about. We share challenges, rewards and a desire to contribute. It’s only natural that you’ll find us contributing our time and money to worthwhile initiatives including: Food Pantry Manufacturing Pathways Consortium Stateline Manufacturing Consortium Illinois Manufacturer’s Association Adopt a Highway McHenry County Area Chamber of Commerce MSOE Scholarship Partnerships with local schools Community involvement is part of our fabric. And it’s one more way we’re proudly plaid. Working At Scot Forge Career Opportunities If you are seeking a career, not just a job, click to explore our current openings. Employee Benefits Here are the top reasons why Scot Forge employee-owners choose to build their careers with us. Why Manufacturing Find out why Manufacturing is such a great career choice. Employment Information Scot Forge Company is an Equal Employment Opportunity (EEO) employer and welcomes all qualified applicants. We can help you today! Name* Phone Number* Company* Email* State/Country* Comment/Request* File upload Upload File NOTE: Please do not upload sensitive documents. For a secure file transfer please call 800-435-6621. Submit

Scot Forge equipment list featuring 21,000-ton open-die presses, ring rolling to 252-inch OD, 1,000,000-lb furnace capacity, CNC machining, heat treatment and in-house NDE testing. cAPABILITY & eQUIPMENT lIST Reliable forgings start with the right equipment Through constant investments in new equipment, rebuilds and upgrades of existing equipment, Scot Forge offers the most comprehensive and advanced forging capabilities and services available in the industry Our services and capabilites include: Forge Presses Forge Hammers Ring Rolling Thermal Processing Machining Destructive Testing Material Handling Nondestructive Testing Forge Development Metallurgy Scot Forge on-staff, in-house metallurgists and quality inspectors implement testing methods that support production, quality control and research and development for our customers. Our expertise includes: Forge Presses Forge Hammers Ring Rolling Our services and capabilites include: Forge Presses Forge Hammers Ring Rolling Thermal Processing Machining Destructive Testing Material Handling Nondestructive Testing Forge Development Metallurgy Thermal Processing Machining Destructive Testing Material Handling Nondestructive Testing Metallurgy Forge Development Our services and capabilites include: Forge Presses Forge Hammers Ring Rolling Thermal Processing Machining Destructive Testing Material Handling Nondestructive Testing Forge Development Metallurgy Scot Forge Capability FAQ What is Scot Forge’s largest hydraulic open die press capacity? Scot Forge operates hydraulic open die presses up to 21,000 tons with forging capacity up to 440,000 lbs. What is your maximum ring rolled outside diameter? Ring rolling capacity is up to 252" O.D. with up to a 49" face and ring weights up to 65,000 lbs. Do you have a ring expander for sizing and stress relieving? Yes. Scot Forge has a 4,200 ton ring expander for rings from 42" ID to 250" ID x 42" tall, used for mechanical stress relieving and sizing. How many forge furnaces do you have and what is the maximum furnace weight capacity? Scot Forge has 55 forge furnaces with max weight capacity up to 1,000,000 lbs. Do you provide in-house NDE and inspection? Yes. Capabilities include wet fluorescent magnetic particle inspection, liquid penetrant inspection, ultrasonic testing, XRF analyzers, full shear wave capability, and in-house ASNT and ACCP certified Level III personnel. What are your largest CNC turning capabilities? CNC lathes support up to 105" diameter by 551" length. Boring capability is up to 68" I.D. by 380" long. What are your largest vertical turning capabilities? CNC vertical turret lathes have capacity up to 315" O.D. by 265" length with live tooling capability up to 315" diameter and 500,000 lbs table capacity. Do you offer deep-hole drilling and boring? Yes. Deep-hole drilling and boring supports holes from 1" to 12.375" diameter with lengths up to 504" and max part O.D. of 55". What are your largest saw cutting capabilities? Band saws cut up to 63" square. Carbide cutoff saws cut up to 24" square. A CNC dual head gantry saw cuts up to 44" square with a 90° cutting option. What are your thermal treatment and quench capabilities? Scot Forge operates multiple quench tanks including 50,000 gallon water and 56,000 gallon polymer tanks for bars and hollows to 30 feet, plus additional polymer and water quench systems for rings and large shapes. Forging Capabilities Hydraulic Open Die Presses Capacity up to 440,000 lbs 1 – 21,000 Ton 1 – 10,000 Ton 1 – 5,500 Ton 1 – 4,500 Ton 2 – 3,000 Ton 1 – 2,000/2,500 Ton 2 – 1,250 Ton Forge Furnaces 55 – Forge furnaces, max weight capacity up to 1,000,000 lbs Reversing Bar Planishing Mill 1 – Single stand for bars 6" – 16 3/8" diameter Open Die Air Hammers Capacity up to 3,000 lbs 1 – 9,500 lbs 1 – 8,000 lbs 1 – 6,000 lbs 1 – 5,000 lbs 1 – 4,000 lbs Ring Rolling Mills Capacity up to 252" O.D., 49" face, and weight to 65,000 lbs 1 – 450/250 Wagner automatic radial/axial 1 – 160/120 Wagner radial/axial 1 – 120/80 Wagner automatic radial/axial 1 – 275 Ton Banning radial Ring Expander 1 – 4,200 Ton, 42" ID to 250" ID x 42" tall, used for mechanical stress relieving and sizing of rings Material Handling Equipment 15 – Mobile manipulators, up to 300,000 lbs lift capacity 26 – Long reach manipulators, up to 30,000 lbs capacity 57 – Forklift trucks, up to 160,000 lbs capacity 2 – Yard cranes, up to 50 ton capacity 50 – Overhead cranes and hoists, up to 205 ton capacity 2 – Mobile cranes, up to 35 ton capacity 1 – Combilift, 300,000 lbs capacity Testing and Metallurgical Capabilities Metallurgy and Mechanical Testing Equipment ARL 3460 spectrometer Rockwell and micro-hardness testers Charpy impact testing up to 700 ft-lbs Tensile testing systems Drop weight and dynamic tear testing CNC machining for test specimens In-house R&D heat treatment lab Laser tracker and hemispherical scanner Romer arms with integrated scanning Ultrasonic testing scopes, NIST traceable Borescope inspection NDE and Inspection Capabilities Wet fluorescent magnetic particle machines up to 10,000 amp Visible and wet fluorescent liquid penetrant inspection Niton XRF analyzers Custom ultrasonic standards manufacturing Full shear wave capability In-house ASNT and ACCP Level III personnel In-house MIL-STD-2132 standards compliance Machining Capabilities 27 – CNC Lathes Max capacity 105" dia. x 551" length Boring capability 68" I.D. x 380" long 10 – CNC Horizontal Turret Lathes OD turning 46" dia. x 156" length Boring 33" dia. x 120" length 21 – CNC Vertical Turret Lathes Max capacity 315" O.D. x 265" length Live tooling capability up to 315" dia. 500,000 lbs table capacity 6 – CNC Five-Axis Horizontal Boring Mills 1080" x 177" x 93" max travel 264,000 lbs max weight 1 – CNC Vertical Machining Center 30" x 64" table 3 – CNC Deep-Hole Drilling and Boring Machines Holes from 1" to 12.375" dia. Lengths up to 504" 55" max part O.D. 2 – CNC Planer Mills, twin heads Max capacity 66" x 72" x 336" length 1 – Large CNC Gantry Milling Machine Horizontal, vertical and gimbal heads 88" x 157.5" x 524" length Two tables, 100,000 lbs capacity each 1 – Bar Peeler Handles 4" to 16" dia., 100" minimum length Thermal Processing Capabilities 50,000-gallon water quench tank and 56,000-gallon polymer quench tank for bars and hollows to 30 feet 42,000-gallon polymer and water quench pit tank for rings to 20 feet diameter 52,000-gallon polymer and water quench tank for shapes up to 6 feet wide x 45 feet long 8,000-gallon water quench tank, up to 12 feet diameter 6,000-gallon polymer quench tank, up to 10 feet diameter 53 – Car bottom, tip-up and pit furnaces up to 76 feet long or 20 feet diameter 2 – Stacker cranes for loading furnaces, up to 65,000 lbs capacity 3 – Quench manipulators up to 240,000 lbs capacity 4 – Specialized aluminum heat treating furnaces up to 20 feet wide x 65 inches tall Drop bottom furnace for aluminum products up to 21 feet diameter and 56 inches tall, 30,000 lbs load capacity Dual 60,000-gallon quench tanks, combinable to 127,000 gallons Pit furnaces and quench system capable of heat treating parts 225" x 190" high, up to 300,000 lbs Miscellaneous Equipment CNC contour flame cutting machine up to 76" x 280" x 26" thick 1,000 Ton automated hydraulic straightening press 1,200 Ton automated hydraulic straightening press 400 Ton ring straightener Manlifts up to 80 feet Semi-trucks and trailers rated to 50,000 lbs Double drop trailer with ring rack up to 240" O.D. Saw Cutting 5 – Carbide cutoff saws, up to 24" sq. 25 – Band saws, up to 63" sq. 1 – CNC dual head Danobat gantry saw, up to 44" sq., 90° cutting option 1 – Hot abrasive cut-off saw for bars to 16 1/4" dia. 1 – Ring splitter, 51.2" max O.D. 1 – Ring segmenter, 240" max O.D., 25" max wall thickness, 36" max face height 4 – Flame cutting torches up to 32" sq. We can help you today! Name* Phone Number* Company* Email* State/Country* Comment/Request* File upload Upload File NOTE: Please do not upload sensitive documents. For a secure file transfer please call 800-435-6621. Submit

Careers - Employee Benefits Top Reasons It Pays To Join Our Team We have grown to become a leader in the open-die forging industry by rewarding our most valuable resource: our employee-owners. Scot Forge Full-Time Employment Benefits Package Employee stock ownership plan (ESOP)* Profit sharing All salaried workforce** Medical Dental Vision Prescription drug plan 401k Flexible spending account (FSA) Retirement and budget planning assistance Company sponsored life insurance Wellness program Short term and long term disability Tuition reimbursement Educational bonuses Paid holidays Paid vacation Relocation assistance Employee discount programs Employee assistance program (EAP) Company sponsored events Service recognition awards *ESOP Every employee becomes an owner at Scot Forge. As employee-owners, we earn a percentage of stock in the company each year and share in the profits through our Customer Satisfaction Incentive (CSI) bonus plan, which is based upon company quality and on-time delivery metrics. **All-Salaried Workforce All full-time employees (exempt and non-exempt) are afforded a 40-hour paycheck based on normal business and economic conditions. Working At Scot Forge Current Opportunities Employee Benefits Here are the top reasons why Scot Forge employee-owners choose to build their careers with us. Career Development Scot Forge offers a wide range of opportunities for individuals to develop, advance and grow. Why Manufacturing Find out why Manufacturing is such a great career choice. Employment Information Scot Forge Company is an Equal Employment Opportunity (EEO) employer and welcomes all qualified applicants. Featured Jobs: CNC Machinist / Programmer Franklin Park, IL Architectural Structural Engineer Spring Grove, IL Mechanical Engineer - Fluid Power Specialty Spring Grove, IL Fork Truck Repair Technician Franklin Park, IL We can help you today! Name* Phone Number* Company* Email* State/Country* Comment/Request* File upload Upload File NOTE: Please do not upload sensitive documents. For a secure file transfer please call 800-435-6621. Submit