Hot Work Mould Steel Plate for Die-casting 1.2344 SKD61 H13
1. Definition1.2344/H13/SKD61 steel is a pressure resistant hot work die steel. The steel is remelted by electroslag, uniform in material, good in hardenability, excellent in machinability and polishing performance, high toughness and plasticity, good high and low temperature wear resistance, and high temperature fatigue and heat resistance.
2. Grades
Chinese | American | German | Swedish | Japanese |
GB | AISI | DIN | ASSAB | JIS |
4Cr5MoSiV1 | H13 | 1.2344 | 8407 | SKD61 |
3. Chemical Composition (%)
C | Si | Mn | P | S | Cr | Mo | V |
0.35-0.40 | 1.00-1.20 | 0.40-0.60 | ≤0.015 | ≤0.003 | 4.80-5.20 | 1.20-1.40 | 0.80-1.00 |
4. Hardness
Annealing hardness | Quenching hardness | Tempering hardness |
≤230HB | 51-55HRC | 46-50HRC |
5. Technical service
1) Die vacuum heat treatment and die surface treatment (N-O,C-N, carburize and nitridation surface treatment).
2) Black surface, annealing, hot rolled/forged, EAF/ESR, 2 or 4 sides cutting
6. Heat Treatment
Heating temperature | Cooling way | Hardness (HRC) | Tempering temperature /ºC | Tempering number | Hardness (HRC) | ||
First preheating | Second preheating | Last heating | |||||
500- 600 | 820- 860 | 1010- 1040 | Oil cooling | 53-55 | 560-620 | 2 | 50-46 |
7. Available Size (mm)
Shape | Thickness/ Diameter | Width | Length | |
Round Bar | 16-520 | / | 3000-6000 | |
Flat Bar | 16-260 | 205-610 | 3000-6000 | |
Forged | Round Bar | 150-450 | / | 2000-6000 |
Block | 100-500 | 600-1000 | 2000-6000 |