China 1.3343/M2 Turned High Speed Steel Round Bar for Cutters, Find details about China alloy steel, SKH51 Steel from 1.3343/M2 Turned High Speed Steel Round Bar for Cutters
C | Si | Mn | P | S | Cr | Mo | W | V |
0.78-0.88 | 0.20-0.45 | 0.15-0.45 | ≤0.03 | ≤0.03 | 3.75-4.50 | 4.50-5.50 | 5.50-6.75 | 1.75-2.20 |
Quenching | Tempering | ||||||
Tempering 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 |
Flat Bar Size(mm) | Round bar Size(mm) | |||
Thickness | Width | Length | Diameter | Length |
10-200 | 155-2200 | 3000-6000 | 10-300 | 3000-6000 |