China H13 1.2344 SKD61 Steel Plate & Flat Bar Hot Work Mould Steel, Find details about China SKD61 Steel, Steel Plate from H13 1.2344 SKD61 Steel Plate & Flat Bar Hot Work Mould 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 |