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USER GUIDE
MATERIAL GROUPS
Hardness Conversion Table
N/mm 2 Kpsi
80 560
80 560 MATERIALS AND GRADES
200 100 700
100 700
120 840
120 840
140 980
140 980
300
160 1120
160 1120
180 1260
180 1260
200 1400
400 200 1400
220 1540
220 1540
240 1680
240 1680
Brinell Hardness (HB) 260 1820
1820
260
500
280
1960
1960
280
2100
300
300
2100
600
2240
320
320 2240
700
Tensile Strength
10 20 30 40 50 60 70
Rockwell “C” Hardness (HRC)
727
