1.2367 VEXtra
Hot work tool steel with ESR properties. Very good hot strength and hot wear resistance and also improved toughness.
Chemical Composition
| NO | DIN | C | Si | Mn | P | S | Cr | Mo | V |
|---|---|---|---|---|---|---|---|---|---|
| 1.2367 VEXtra | X38CrMoV5-3 | 0,35-0,40 | 0,20-0,40 | 0,20-0,50 | Max 0,02 | Max 0,005 | 4,80-5,50 | 2,30-2,60 | 0,50-0,60 |
Material Properties
- High hot strength and tempering back resistance.
- Very good creep resistance.
- Good thermal shock resistance.
- Good toughness and ductility.
- Good weldability
- Good machinability.
- Up to 54 HRc after heat treatment.
- Recommended working hardness 42-48 HRc
- Good nitriding and coating ability.
Applications
- Aluminium extrusion dies in tough conditions or for better surface quality
- Aluminium extrusion dies for better surface quality on the profile
- Against to deformation problems in al extrusion dies
- Stems, support blocks, bolsters, stamps, etc in aluminium extrusion tools.
- Liners in Al extrusion
- Shot sleeves on die casting.
- Cores, pins, and inserts on the hot sections of the die casting dies.
- Inserts of symmetric press forging dies.
- Preferred for dies and tools operating at elevated temperatures.
- Not recommended to use on large dies because its toughness is lower than 2343 and 2344 and the other modified grades.
- Welding rolls in pipe profile manufacturing
Heat Treatment
| HEAT TREATMENT | TEMPERATURE |
|---|---|
| Soft Annealing | 630-800°C |
| Stress Relieving | 600-650°C |
| Hardening | 1020-1080°C |
| Tempering | 530-700°C |
Physical Properties
| 20°C | 100°C | 200°C | 300°C | 500°C | |
|---|---|---|---|---|---|
| Elastic Modulus [kN/mm²] | 218 | - | 198 | - | 179 |
| Thermal Expansion Coefficient [10ˉ6/K] | - | 11,5 | 12,0 | 12,2 | 12,9 |
| Thermal Conductivity [W/mK] | 29,7 | - | 33,5 | - | 34,8 |
Delivery Condition
230 HB, Soft Annealed.
Tempering Graph
