Page 237 - Threading_Handbook
P. 237
Hardness Conversion Table
Kpsi N/mm 2 GRADES AND MATERIALS
80 560
200
100 700
120 840
140 980
300
160 1120
180 1260
400 200 1400
Brinell Hardness (HB) 500 240 1680
220
1540
260
1820
280
2100
300 1960
600
320 2240
700
Tensile Strength
10 20 30 40 50 60 70
Rockwell “C” Hardness (HRC)
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