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
|