Rockwell
Rockwell Superficial
Brinell
Vickers
Shore
A
B
C
D
E
F
15-N
30-N
45-N
30-T
3000 kg
500 kg
136
Approx Tensile Strength (psi)
60kg Brale
100kg 1/16" Ball
150kg Brale
100kg Brale
100kg 1/8" Ball
60kg 1/16" Ball
15kg Brale
30kg Brale
45kg Brale
30 kg 1/16" Ball
10mm Ball Steel
Diamond Pyramid
Sciero-scope
34.0
47
---
85.0
84.0
47.7
80
33.5
46
84.5
83.0
47.0
79
33.0
45
82.5
46.2
32.5
44
83.5
82.0
45.5
78
32.0
43
81.5
44.8
77
31.5
42
81.0
44.0
76
31.0
41
80.5
43.4
75
30.8
40
79.5
43.0
74
30.5
39
80.0
79.0
42.1
30.0
38
78.5
41.5
73
29.5
37
78.0
40.7
72
29.0
36
77.5
40.0
71
28.5
35
77.0
39.3
28.0
34
76.5
38.5
70
27.8
33
75.5
37.9
69
27.5
32
76.0
75.0
37.5
68
27.0
31
74.5
36.6
26.5
30
74.0
36.0
67
26.0
29
73.5
35.2
66
25.5
28
73.0
34.5