|
FIRST consideration of die material to be used for a particular
component hardness.
However, many aspects may effect choice - therefore, full details
of application and method of die use should be obtained.
|
ROCKWELL 'C' SCALE
|
DPN or VPN
|
BRINELL
|
|
|
|
|
|
|
|
71
|
1220
|
|
|
|
68
|
1114
|
|
|
|
66
|
980
|
|
|
|
65
|
920
|
|
|
|
64
|
850
|
|
|
|
63
|
820
|
|
|
|
62
|
790
|
|
|
|
|
61
|
743
|
|
|
|
60
|
720
|
609
|
|
|
59
|
700
|
604
|
|
|
58
|
682
|
589
|
TUNGSTEN CARBIDE
|
|
57
|
664
|
576
|
(with much caution)
|
|
56
|
624
|
546
|
|
|
55
|
611
|
535
|
|
|
|
54
|
597
|
523
|
|
|
53
|
583
|
515
|
|
|
52
|
568
|
502
|
|
|
51
|
543
|
487
|
|
|
50
|
530
|
479
|
|
|
49
|
517
|
469
|
|
|
48
|
497
|
457
|
|
|
47
|
475
|
439
|
HIGH
|
|
46
|
461
|
429
|
SPEED
|
|
45
|
457
|
426
|
STEEL
|
|
44
|
435
|
412
|
|
|
43
|
419
|
397
|
|
|
42
|
410
|
387
|
|
|
41
|
402
|
381
|
|
|
40
|
385
|
366
|
|
|
39
|
374
|
355
|
|
|
38
|
357
|
338
|
|
|
|
37
|
346
|
329
|
|
|
36
|
335
|
319
|
|
|
35
|
323
|
308
|
|
|
34
|
313
|
300
|
STOCK
|
|
33
|
301
|
286
|
TYPE & PUNCHES
|
|
32
|
293
|
280
|
|
|
31
|
289
|
276
|
|
|
30
|
285
|
272
|
|
|
29
|
278
|
267
|
|
|
28
|
272
|
261
|
TOOL STEEL
|
|
26
|
261
|
251
|
|
|
25
|
255
|
245
|
OIL OR WATER
|
|
24
|
249
|
239
|
HARDENED
|
|
22
|
241
|
231
|
|
|
21
|
234
|
225
|
|
|
20
|
226
|
214
|
|
|
18
|
222
|
211
|
|
|
17
|
217
|
205
|
STOCK
|
|
15
|
212
|
201
|
TYPE & PUNCHES
|
|
12
|
208
|
196
|
|
|
12
|
200
|
190
|
|
|
11
|
198
|
189
|
|
|
