DIN 1.2344 steel belongs to hot working tool steel as per DIN 17350 standard.
DIN 1.2344 steel retains its strength and hardness at temperatures up to 600°C, making it very suitable for high temperature environments.
In addition, DIN 1.2344 steel has excellent machining and polishing properties, which is very beneficial for mold manufacturing.
DIN 1.2344 steel is usually supplied in pre-hardened or annealed condition.
DIN 1.2344 STEEL CHEMICAL COMPOSITION
| Grade | C | Si | Mn | P | S | Cr | Mo | V |
| 1.2344 | 0.37-0.43 | 0.9-1.2 | 0.3-0.5 | ≤0.03 | ≤0.03 | 4.8-5.5 | 1.2-1.5 | 0.9-1.1 |
DIN 1.2344 STEEL RELATED STANDARD & EQUIVALENT GRADE
China/GB 1299: 4Cr5MoSiV1
USA/ASTM A681:H13
Japan/JIS G4404: SKD61
DIN 1.2344 STEEL FORGING
- Initial Forging Temperature：1050-1100℃
- Final Forging Temperature：900-950℃
- Forging Ratio：above 4:1
- Post-Forging Treatment:For 1.2344 steel, annealing immediately after forging is most suitable.
DIN 1.2344 STEEL HEAT TREATMENT
Critical Temperature for Heat Treatment of 1.2344 Steel
- Ac1:860℃
- Ac3:915℃
- Ar1:775℃
- Ar3:815℃
- Ms:315℃
Temperature Selection for Different Types of Heat treatment for 1.2344 steel
- Normalizing:920-940℃,Cool in air.
- Annealing:860-890℃,Cool in furnace,hardness below 229HBW
- Stress Relief Annealing:730-760℃,furnace cooling.
- Quenching: 1020-1060℃,Oil/Air quench,quenching hardness:53-55HRC.
- Tempering:560-580°C, double tempering process with hardness 47-51HRC.