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Thursday, September 09, 2010
Brown Metals Company Intranet

Rockwell Hardness Conversion Calculator
 
Material Type :
Hardness Scale:
Enter Value to Convert:
   
VickersKnoop15NC Scale
479
504
84.1
48
459
482
83.6
47
447
469
83.1
46
435
457
82.6
45
424
445
82.1
44
413
433
81.6
43
403
421
81
42
393
409
80.5
41
384
398
80
40
374
388
79.5
39
369
379
79
38
358
-
78.5
37
-
-
78
36
337
355
77.5
35
328
348
77
34
325
340
76.5
33
316
330
75.9
32
308
321
75.4
31
300
314
74.9
30
293
306
74.4
29
286
300
73.9
28
280
294
73.4
27
275
287
72.9
26
267
281
72.4
25
261
275
71.9
24
257
268
71.3
23
251
-
70.8
22
-
-
70.3
21
-
-
69.8
20

 
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