H13 Die Steel
A:Specification
Product |
Material | Spec.(mm) | Length（mm) | Remark |
| Hot Work Steels | H13 | Φ12-60 | 3000-5800 | Hot Rolled、Annealed |
| Hot Work Steels | Φ65-350 | 3000-5800 | Forging 、Annealed 、Polished | |
| Hot Work Steels | Φ360-500 | 3000-5800 | Polished、Annealed 、Electro-slag | |
| Hot Work Steels | Φ340-650 | 3000-5800 | Smooth Machined、Annealed 、Electro-slag | |
| Hot Work Steels | H13 | 25-60*255-405 | 3000-5800 | Forging |
| Hot Work Steels | 105-350*505-620 | 3000-5800 | Forging Electro-slag | |
| Hot Work Steels | 30-48*510 | 3000-5800 | Electro-slag |
B: Performance Table
|
General Information |
Very good retentively of hardness and toughness at elevated temperatures. Compression strength is very good and it is insensitive to thermal shocks. Wear resistance is than 2343. Good mechanical property in the annealed condition. |
| Comparable Standards |
AISI/SAE DIN W.N AFNOR JIS SIAU |
| H13 X40CrMoV51 1.2344 / BH13 MTV | |
| Chemical Analysis (%) |
C Mn Si Cr Mo V P S |
| 0.37-0.42 0.30-0.50 0.90-1.20 4.80-5.50 1.20-1.50 0.90-1.10 ≤0.03 ≤0.03 |
Heat Treatment
ANNEALING:
- heat to800℃, hold at temperature for 1/2 h to 1 h;
- Furnace cooling to 780℃ and hold at temperature for at least 5 hours;
- cool by 10℃/h to 750℃;
- cooling in air.
Maximum hardness:230 HB
Stress relieving:
To be carried out after machining and before the final heat treatment,
- Heating to 650÷700℃, hold for 4÷6 hours;
- cooling in air.
Hardening ;
- Initial preheating to350÷450℃;
- Second preheating to 750÷850℃;
- Heat to hardening temperature in the range 1000÷1050℃ and hold at temperature;
-Cooling in air.
Quenched hardness: 52÷56HRC
Tempering:
In the range 550÷630℃ for at least 3 hours according requirements and conditions of use.
Tempering must be repeated a second time at a temperature to or 20℃ lower than the previous. Before tempering, preheat the parts to 200÷300℃.
Tempering Curve (only for reference):
