Hardness Converter Table 1

Hardness Converter Table 12018-04-06T14:27:09+00:00

Hardness Converter Table 1

APPROXIMATIVE CONVERSION BETWEEN THE NUMBERS OF HARDNESS ROCKWELL, SUPERFICIAL ROCKWELL, VICKERS AND BRINELL.

C
A
D
15N
30N
45N
Vickers
Brinell
G
 
Diamond cone
Diamond cone
Diamond cone
Diamond cone
Diamond cone
Diamond cone
Diamond pyramid
Ball 10mm
Ball 1/16"
Max. Stress
150 kg
60 kg
100 kg
15 kg
30 kg
45 kg
10 kg
3000 kg
150 kg
kg./mm2
80
92.0
86.5
96.5
92.0
87.0
1865
-
-
 
79
91.5
85.5
-
91.5
86.5
1787
-
-
 
78
91.0
84.5
96.0
91.0
85.5
1710
-
-
 
77
90.5
84.0
-
90.5
84.5
1633
-
-
 
76
90.0
83.0
95.5
90.0
83.5
1556
-
-
 
75
89.5
82.5
-
89.0
82.5
1478
-
-
 
74
89.0
81.5
95.0
88.5
81.5
1400
-
-
 
73
88.5
81.0
-
88.0
80.5
1323
-
-
 
72
88.0
80.0
94.5
87.0
79.5
1245
-
-
Approximative
71
87.0
79.5
-
86.5
78.5
1160
-
-
values only
70
86.5
78.5
94.0
86.0
77.5
1076
-
-
for steel
69
86.0
78.0
93.5
85.0
76.5
1004
-
-
 
68
85.5
77.0
-
84.5
75.5
942
-
-
 
67
85.0
76.0
93.0
83.5
74.5
894
 
 
 
66
84.5
75.5
92.5
83.0
73.0
854
-
-
 
65
84.0
74.5
92.0
82.0
72.0
820
-
-
 
64
83.5
74.0
-
81.0
71.0
789
-
-
 
63
83.0
73.0
91.5
80.0
70.0
763
-
-
 
62
82.5
72.5
91.0
79.0
69.0
739
-
-
 
61
81.5
71.5
90.5
78.5
67.5
716
-
-
 
60
81.0
71.0
90.0
77.5
66.5
695
614
-
221
59
80.5
70.0
89.5
76.5
65.5
675
600
-
215
58
80.0
69.0
-
75.5
64.0
655
587
-
210
57
79.5
68.5
89.0
75.0
63.0
636
573
-
205
56
79.0
67.5
88.5
74.0
62.0
617
560
-
200
55
78.5
67.0
88.0
73.0
61.0
598
547
-
195
54
78.0
66.0
87.5
72.0
59.5
580
534
-
190
53
77.5
65.5
87.0
71.0
58.5
562
522
-
185
52
77.0
64.5
86.5
70.5
57.5
545
509
-
180
51
76.5
64.0
86.0
69.5
56.0
528
496
-
176
50
76.0
63.0
85.5
68.5
55.0
513
484
-
171
49
75.5
62.0
85.0
67.5
54.0
498
472
-
166
48
74.5
61.5
84.5
66.5
52.5
485
460
-
162
47
74.0
60.5
84.0
66.0
51.5
471
448
-
157
46
73.5
60.0
83.5
65.0
50.0
458
437
-
153
45
73.0
59.0
83.0
64.0
49.0
446
426
-
148
44
72.5
58.5
82.5
63.0
48.0
435
415
-
144
43
72.0
57.5
82.0
62.0
46.5
424
404
-
140
42
71.5
57.0
81.5
61.5
45.5
413
393
-
136
41
71.0
56.0
81.0
60.5
44.5
403
382
-
132
40
70.5
55.5
80.5
59.5
43.0
393
372
-
128
39
70.0
54.5
80.0
58.5
42.0
383
362
-
124
38
69.5
54.0
79.5
57.5
41.0
373
352
-
120
37
69.0
53.0
79.0
56.5
39.5
363
342
-
117
36
68.5
52.5
78.5
56.0
38.5
353
332
-
114
35
68.0
51.5
78.0
55.0
37.0
343
322
-
110
34
76.5
50.5
77.0
54.0
36.0
334
313
-
108
33
67.0
50.0
76.5
53.0
35.0
325
305
-
104
32
66.5
49.0
76.0
52.0
33.5
317
297
-
101
31
66.0
48.5
75.5
51.5
32.5
309
290
-
98
30
65.5
47.5
75.0
50.5
31.5
301
283
92.0
96
29
65.0
47.0
74.5
49.5
30.0
293
276
91.0
93
28
64.5
46.0
74.0
48.5
29.0
285
270
90.0
91
27
64.0
45.5
73.5
47.5
28.0
278
265
89.0
89
26
63.5
44.5
72.5
47.0
26.5
271
260
88.0
86
25
63.0
44.0
72.0
46.0
25.5
264
255
87.0
84
24
62.5
43.0
71.5
45.0
24.0
257
250
86.0
82
23
62.0
42.5
71.0
44.0
23.0
251
245
84.5
81
22
61.5
41.5
70.5
43.0
22.0
246
240
83.5
79
21
61.0
41.0
70.0
42.5
20.5
241
235
82.5
77
20
60.5
40.0
69.5
41.5
19.5
236
230
81.0
76

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