
Hardness
HRB HRC Rm N/mm2 Fe Ni Cr Co Mo W Si Mn C Al Ti Li P S Mg Zn Cu Others
HB Unalloyed Steels 750-1100 740-1080
800-1200 750-1100 1100-1300 241-277HB 890 440-590 690-880 900-1100 530-860 700-950 950-1150 700-750 1050-1100 800 850 780-1180 850 800 705 510-710 740 560-1200
| 187HB 600 | 0.4 | 0.3 | 0.12 | 0.15-0.35 0.6-1.05 | 0.35 | 0.035 | 0.04 | 0.4 | Nb 0.4 |
| 0.4 | 0.4 | 0.15 | 0.10 min 0.29-1.06 0.3 | 0.048 | 0.058 | 0.4 | Nb 0.4 | ||
| 440-590 | |||||||||
| 440-590 | |||||||||
| 440-570 | |||||||||
| 197HB 660 | 0.4 | 0.4 | 0.15 | 0.10 min 0.29-1.06 0.3 | 0.05 | 0.058 | 0.4 | Nb 0.4 | |
| 0.4 | 0.3 | 0.10 min 0.6-1.35 | 0.3 | 0.035 | 0.04 | 0.4 | |||
| 750 | |||||||||
| 290-540 | |||||||||
| 0.4 | 0.10 min 0.29-1.06 0.3 | 0.025 | 0.025 | ||||||
| 300-500 | |||||||||
| 460-500 | |||||||||
| 197HB 660 | 0.4 | 0.3 | 0.12 | 0.15-0.30 0.6-1.35 | 0.3 | 0.035 | 0.04 | 0.4 | Nb 0.4 |
| 750 | |||||||||
| 750 | |||||||||
| 460-580 | |||||||||
| 0.1-0.35 1.4 | 0.2 | 0.05 | 0.05 | ||||||
| 0.1-0.35 1.6 | 0.22 | 0.04 | 0.04 |
| Material Gu | ide –Keyto Recommended Inserts Material Designation | ||
| P Unalloyed Steels | P Alloyed Steels | M Stainless Steels | M K N S H PH Stainless Aluminum & Alloys High Temp. Alloys Hard Materials Cast Irons |