1.2344 material is a hot work die casting steel. The steel is remelted by electroslag, uniform in material, good hardenability, good machinability and polishing performance, high toughness and plasticity, good high and low temperature wear resistance and high temperature fatigue and heat resistance.
1.2344 Mold Steel Characteristics
1. Uniform material, excellent machinability and polishing.
2. High toughness and high plasticity.
3. High wear resistance at high and low temperatures.
4. Excellent overall hardenability.
5. High temperature strength and thermal fatigue resistance are good.
6. The deformation is extremely low during heat treatment.
7. It has better isotropic properties than traditional steel, and its toughness and plasticity are excellent in all directions.
1.2344 Mold Steel Heat Treatment
| Forging |
Soften annealing |
hardening |
tempering |
| 1050-850℃ |
820-840℃ |
1020-1050℃ |
520-700℃ |
Purity: According to ASTM E45 Method A, A sulfide ≤ 0.5, B oxide, C silicate and D spheroidal oxide each ≤ 1 or DIN 50602-K1 ≤ 10 or according to customer requirements.
Steel ex-factory state: soft annealing, good microstructure, hardness up to 229HB or quenching to customer requirements.
(1) Isothermal annealing specification
Annealing temperature (850±10)°C, heat preservation for 2h, with furnace cooling to (720 ± 10) °C, heat preservation for 4h, furnace cooling to below 500 °C, air cooling, hardness ≤ 229HBW.
(2) High temperature tempering specification
Tempering temperature (730±10) °C, heat preservation 2h, furnace cooling all ≤500°C, air cooling.
(3) Quenching and tempering specifications
Quenching temperature 850~880°C, oil cooling, hardness 50~52HRC; tempering temperature 580~640°C, air cooling, hardness 28~36HRC
(4) Pre-hardening treatment specification
Heating temperature 860 ~ 900°C, oil cooling, tempering temperature 570 ~ 70O°C, air cooling, tempering hardness 28 ~ 35HRC.
1.2344 Mold Steel Application1. Die-casting mold (mould, fixing, upper mold, nozzle, nitrided thimble).
2. Extrusion die (mold, support, choke).
3. Hot pressing mold, (aluminum, magnesium, copper alloy).
4. Parts, such as cold shear, flash, hot shear, wear parts.
