Cast Irons

Hardness

HRB HRCOthers Cu Zn Mg S P Li Ti Al C Mn Si W Mo Co Cr Ni Fe Rm N/mm2
HB
Gray Iron
230HB760
235HB770
250HB810
175HB570
185HB620
205HB660
220HB730
Spheroidal-Ductile Iron
150-200HB660
200-250HB810
200-250HB810
200-250HB810
150-180HB600
155-220HB730
190-255HB820
200-260HB840
240-300HB970
265-300HB970
130-170HB570
130-180HB600
390
140-200HB660
370
140-200HB660
140-190HB630
370
390
120-170HB570
170-240HB780
370
380
370
Malleable Iron
150HB350-500
175HB580
205HB670
230HB650-880
265HB700-950

340-740 360-740 400-740

Material Guide – Key to Recommended Inserts

Material Designation

P Unalloyed Steels P Alloyed Steels M Stainless Steels M PH Stainless K Cast Irons N Aluminum & Alloys S High Temp. Alloys H Hard Materials