Forged Tartan Round Bars

Tartan Rolled Bar Quality

Tartan Bars are a unique forged round bar offered only by Scot Forge. These round bars are available in ferrous and non-ferrous materials and custom sizes from 6" to 16" diameter with lengths up to 35'. They feature forged sound centers with rolled bar surface quality and tight dimensional tolerances, ideal for applications with harsh environments, such as Aerospace, Nuclear, Oil & Gas, Mining and Infrastructure.

Forged Round Bar

Bar Product

Tartan Bars Versus Rolled Bars

Rapid delivery—turnaround in 2-4 weeks (breakdowns even quicker)
Custom sizes—6" to 16" in ferrous and non-ferrous grades
High or low quantities—so you have better control over your inventory levels
Competitive prices—due to the efficiency of our process
Elimination of rejections—due to high-strength forged sound centers
A perfect solution to meeting your breakdown or just-in-time customer requirements
Improved straightness—1/8" in any 5' is standard; 1/16" in any 5' is available

Why Tartan Bars Are Unique

Tartan Bars are produced by combining a preliminary forging process, which consolidates the center, with a planishing operation, which provides a smooth-rolled bar surface. At the heart of the operation is our custom-designed, computer-controlled GFM single-stand planishing mill. Through a series of reversing passes, the planishing mill rolls the bar to a smooth surface in less than five minutes.

While still hot, the bar moves down the GFM mill to the Braun abrasive saw station for trimming. A 16’ round can be cut in less than half a minute. To complete the process, the bar is end-stamped for traceability by an automated programmable marking system. The bar is then slowly rotated down an automatic uniform cooling bed to maintain straightness.

Since the bars can be produced so efficiently in the planishing mill, delivery times are reduced. Unlike traditional hot-rolled bars, which can only be manufactured in large runs, forged Tartan Round Bars can be purchased in quantities as small as the product of one ingot.

1. Tip up/box furnace with hot ingots
2. Press forging
3. Rolling to finish on the bar mill
4. Hot abrasive cut-off saw
5. Automated end stamping
6. Slow cooling bed
7. Thermal treatment (optional)
8. Bar peeler (optional)
9. Automated ultrasonic testing (optional)

Carbon, alloy, stainless steel, copper-based, and other ferrous and non-ferrous high-quality starting material are heated to forging temperature in car tip up/box furnace.

Hydraulic open die presses (3,000, 2,000 or 1,250 ton) forge the heated material to both consolidate the center for soundness and size the material in preparation for bar mill processing.

Finish rolling (or planishing) begins as the forged bar goes through one of the four hyperbolic grooves of the custom-engineered GFM bar mill. The desired final dimension is reached after a series of bar rotations and reversing passes through the grooves, taking less than 3 minutes to complete.

While still hot, bars are cut to size by a Braun abrasive saw. A 16" round can be cut in less than half a minute.

Bars are end-stamped for traceability by an automated programmable marking system.

Bars are slowly rotated down an automatic uniform cooling bed to maintain straightness.

A 50,000 gallon quench tank and nine tip up furnaces have been custom-designed to efficiently handle any bar requirement. Process options include normalize, anneal, solution anneal, quench and temper, and stress relieve.

A custom-built Hetran bar peeler provides fast, centerless machining to extremely smooth surfaces. This peeling process takes less than one-fourth the time of conventional turning operations.

Ultrasonic inspection can be performed on Tartan Bars® to assure a sound, quality product.

	Tartan Bars^®	Rolled Bars
Guaranteed sound centers	Yes	No
Custom sizes	Yes	No
Standard straightness	1/8" in any 5'	1/4" in any 5'
Special straightness	1/16" in any 5'	1/8" in any 5'
Typical lead time	2 to 4 weeks	2 to 4 months

Process Highlights

As stated above, Tartan Round Bars are produced by combining a preliminary forging process, which consolidates the center, with a planishing operation, which provides a smooth-rolled bar surface. The rolling/planishing mill equipment used in the process includes:

GFM horizontal rolling mill stand CCR 830 HP
Braun hot abrasive cut-off saw
Automated stamping system
Cooling bed

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:

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.

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 as close to your finished product shape as possible to optimize your production process.

We can help you today!

Name This is a required field.

Company This is a required field.

State/Country This is a required field.

Phone Number: This is a required field.

Comment/Request This is a required field.

Through the unwavering commitment of our employee-owners, we will forge a better future for those we serve: our customers, fellow owners, suppliers and communities. The foundation of our commitment is our unique employee-owned culture, which embodies the values of safety, personal accountability, integrity, continuous improvement, learning and collaboration.

Proud to be an American Manufacturer

8001 Winn Rd.
Spring Grove, IL 60081

1(800)435-6621

Tartan Forged Bar