China M2/1.3343/SKH51 High Speed Alloy Steel For Making Cutters, Find details about China Round Bar, Alloy Steel from M2/1.3343/SKH51 High Speed Alloy Steel For Making Cutters
GB | DIN | AISI | JIS |
W6Mo5Cr4V2 | 1.3343 | M2 | SKH51 |
C | Si | Mn | Cr | Mo | V | W | P | S |
0.80-0.90 | 0.20-0.45 | 0.15-0.40 | 3.80-4.40 | 4.50-5.50 | 1.75-2.20 | 5.50-6.75 | ≤0.030 | ≤0.030 |
Quenching | Tempering | ||||||
Heating temperature/ºC | Cooling way | Hardness (HRC) | Tempering temperature /ºC | Cooling way | Hardness (HRC) | ||
First preheating | Second preheating | Last heating | |||||
550-600 | 950 | 1220-1250 | Oil Cooling | ≥63 | 550-570 | Air Cooling | 60-62 |