China H13 SKD61 1.2344 Forged Tool Steel Round Bar For Hot Work Die Steel, Find details about China Steel Plate, Steel Round Bars from H13 SKD61 1.2344 Forged Tool Steel Round Bar For Hot Work Die Steel
C | Si | Mn | P | S | Cr | Mo | V |
0.32-0.45 | 0.80-1.20 | 0.20-0.50 | ≤0.030 | ≤0.030 | 4.75-5.50 | 1.10-1.75 | 0.80-1.20 |
Quenching | Tempering | ||||||
Heating temperature/ºC | Cooling way | Hardness (HRC) | Tempering temperature /ºC | Tempering number | Hardness (HRC) | ||
First preheating | Second preheating | Last heating | |||||
500-550 | 750-800 | 1020-1050 | Oil Cooling or Air Cooling | 56-58 | 560-580 | 3 | 40-45 |