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USER GUIDE
Hardness Conversion Table
Kpsi N/mm 2 GRADES AND MATERIALS
80 560
200
100 700
120 840
140 980
300
160 1120
180 1260
brinell hardness (HB) 220 1540 tensile Strength
200
1400
400
240
1680
500
260 1820
280 1960
300 2100
600
320 2240
700
10 20 30 40 50 60 70
rockwell “C” hardness (HRC)
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