 Brinell
Chart
This chart shows you the approximate hardness conversion
numbers for steel.
|
BRINELL
|
ROCKWELL
|
Diamond Pyramid Hardness Number,
Vickers
|
Shore Scleroscope Hardness Number
|
Tensile Strength (Approx.) x 1000
psi.
|
|
Indentation Diameter, mm.
|
Hardness,
10 mm. Tungsten Carbide Ball 3000 kg. Load
|
C-Scale Hardness Number
|
B-Scale
100 kg. load, 1/16" Diameter Ball
|
|
---
|
---
|
68.00
|
---
|
940
|
97
|
---
|
|
---
|
---
|
67.00
|
---
|
900
|
95
|
---
|
|
2.25
|
745
|
65.30
|
---
|
840
|
91
|
---
|
|
2.30
|
712
|
---
|
---
|
---
|
---
|
---
|
|
2.35
|
682
|
61.70
|
---
|
737
|
84
|
---
|
|
2.40
|
653
|
60.00
|
---
|
697
|
81
|
---
|
|
2.45
|
627
|
58.70
|
---
|
667
|
79
|
347
|
|
2.50
|
601
|
57.30
|
---
|
640
|
77
|
328
|
|
2.55
|
578
|
56.00
|
---
|
615
|
75
|
313
|
|
2.60
|
555
|
54.70
|
---
|
591
|
73
|
298
|
|
2.65
|
534
|
53.50
|
---
|
569
|
71
|
288
|
|
2.70
|
514
|
52.10
|
---
|
547
|
70
|
273
|
|
2.75
|
495*
|
51.00
|
---
|
528
|
68
|
266
|
|
2.80
|
477
|
49.60
|
---
|
508
|
66
|
254
|
|
2.85
|
461
|
48.50
|
---
|
491
|
65
|
243
|
|
2.90
|
444
|
47.10
|
---
|
472
|
63
|
230
|
|
2.95
|
429
|
45.70
|
---
|
455
|
61
|
220
|
|
3.00
|
415
|
44.50
|
---
|
440
|
59
|
212
|
|
3.05
|
401
|
43.10
|
---
|
425
|
58
|
202
|
|
3.10
|
388
|
41.80
|
---
|
410
|
56
|
193
|
|
3.15
|
375
|
40.40
|
---
|
396
|
54
|
184
|
|
3.20
|
363
|
39.10
|
---
|
383
|
52
|
177
|
|
3.25
|
352
|
37.90
|
(110.0)
|
372
|
51
|
172
|
|
3.30
|
341
|
36.60
|
(109.0)
|
360
|
50
|
164
|
|
3.35
|
331
|
35.50
|
(108.5)
|
350
|
48
|
159
|
|
3.40
|
321
|
34.30
|
(108.0)
|
339
|
47
|
154
|
|
3.45
|
311
|
33.10
|
(107.5)
|
328
|
46
|
149
|
|
3.50
|
302
|
32.10
|
(107.0)
|
319
|
45
|
146
|
|
3.55
|
293
|
30.90
|
(106.0)
|
309
|
43
|
142
|
|
3.60
|
285
|
29.90
|
(105.5)
|
301
|
42
|
138
|
|
3.65
|
277
|
28.80
|
(104.5)
|
292
|
41
|
134
|
|
3.70
|
269
|
27.60
|
(104.0)
|
284
|
40
|
131
|
|
3.75
|
262
|
26.60
|
(103.0)
|
276
|
39
|
127
|
|
3.80
|
255
|
25.40
|
(102.0)
|
269
|
38
|
123
|
|
3.85
|
248
|
24.20
|
(101.0)
|
261
|
37
|
120
|
|
3.90
|
241
|
22.80
|
100.00
|
253
|
36
|
116
|
|
3.95
|
235
|
21.70
|
99.00
|
247
|
35
|
114
|
|
4.00
|
229
|
20.60
|
98.20
|
241
|
34
|
111
|
|
4.05
|
223
|
(18.8)
|
97.30
|
234
|
---
|
107
|
|
4.10
|
217
|
(17.5)
|
96.40
|
228
|
33
|
105
|
|
4.15
|
212
|
(16.0)
|
95.50
|
222
|
---
|
102
|
|
4.20
|
207
|
(15.2)
|
94.60
|
218
|
32
|
100
|
|
4.25
|
201
|
(13.8)
|
93.80
|
212
|
31
|
98
|
|
4.30
|
197
|
(12.7)
|
92.80
|
207
|
30
|
95
|
|
4.35
|
192
|
(11.5)
|
91.90
|
202
|
29
|
93
|
|
4.40
|
187
|
(10.0)
|
90.70
|
196
|
---
|
90
|
|
4.45
|
183
|
(9.0)
|
90.00
|
192
|
28
|
89
|
|
4.50
|
179
|
(8.0)
|
89.00
|
188
|
27
|
87
|
|
4.55
|
174
|
(6.4)
|
87.80
|
182
|
---
|
85
|
|
4.60
|
170
|
(5.4)
|
86.80
|
178
|
26
|
83
|
|
4.65
|
167
|
(4.4)
|
86.00
|
175
|
---
|
81
|
|
4.70
|
163
|
(3.3)
|
85.00
|
171
|
25
|
79
|
|
4.75
|
159
|
(2.0)
|
83.90
|
167
|
---
|
78
|
|
4.80
|
156
|
(0.9)
|
82.90
|
163
|
24
|
76
|
|
4.90
|
149
|
---
|
80.80
|
156
|
23
|
73
|
|
5.00
|
143
|
---
|
78.70
|
150
|
22
|
71
|
|
5.10
|
137
|
---
|
76.40
|
143
|
21
|
67
|
|
5.20
|
131
|
---
|
74.00
|
137
|
---
|
65
|
|
5.30
|
126
|
---
|
72.00
|
132
|
20
|
63
|
*BHN above 495 are for carbide ball only
Note: Values shown in parentheses are beyond the normal
range and are for comparison only.
(These values shown are based on ASTM E10-93, E140-95 and ASM Reference Book, 3rd Ed.)
|
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.
|
|
