– Heat Treatable –
1.2344 VEXtra
Hot work tool steel with ESR properties. Good combination of hot strength and toughness and also hot wear resistance.
Chemical Composition
| NO | DIN | C | Si | Mn | P | S | Cr | Mo | V |
|---|---|---|---|---|---|---|---|---|---|
| V’1.2344 | X40CrMoV5-1 | 0,35-0,43 | 0,80-1,20 | 0,25-0,50 | Max 0,02 | Max 0,005 | 4,80-5,50 | 1,20-1,50 | 0,85-1,15 |
Material Properties
- Good hot strength and tempering back resistance.
- Resistant to thermal shock
- Very high toughness and ductility.
- Good weldability
- Good machinability
- Up to 54 HRc after heat treatment
- The recommended working hardness 44-52
- Good nitriding and coating ability
Applications
- Aluminium extrusion dies, support blocks, bolster, stamp, staples, sealed cores.
- Secondary areas in die casting dies such as biscuit and runner,
- Shot Sleeve in HPDC
- Any type of press forging applications.
- High wear resistant and hard (48 HRc) dies for large production number.
- Upper and also bottom dies in low pressure die casting.
- Gravity molds.
- Industrial knives.
Heat Treatment
| HEAT TREATMENT | TEMPERATURE |
|---|---|
| Soft Annealing | 820-860°C |
| Stress Relieving | 600-650°C |
| Hardening | 1020-1060°C |
| Tempering | 530-700°C |
Physical properties
| 20°C | 100°C | 400°C | 500°C | 600°C | |
|---|---|---|---|---|---|
| Elastic Modulus [kN/mm²] | 215 | - | 179 | - | 168 |
| Thermal Expansion Coefficient [10ˉ6/K] | - | 10,7 | 11,0 | - | 13 |
| Thermal Conductivity [W/mK] | 26 | - | 27,9 | 28,5 | 29,3 |
Delivery Condition
230 HB, Soft annealed.
Tempering Graph
