8407 | 1.2344
1.2344 (X40CrMoV5-1) is a hot work tool steel with excellent high-temperature strength, toughness, and wear resistance. It offers good thermal fatigue resistance and thermal conductivity, making it ideal for die casting, hot forging, and extrusion applications.
Available Form
Round Bar
Custom Diameter & Length
Flat Bar
Custom Thickness, Width & Length
Square Bar
Custom Width & Length
Steel Plate
Custom Thickness, Width & Length
Steel Grade Comparison
| W-Nr | EN | AISI | JIS |
| 1.2344 | X40CrMoV5-1 | H13 | SKD61 |
Chemical Composition(wt%)
| C | Si | Mn | P | S | Cr | Mo | V |
| 0.35~0.42 | 0.80~1.20 | 0.25~0.50 | ≤0.03 | ≤0.02 | 4.80~5.50 | 1.20~1.50 | 0.85~1.15 |
Physical Properties
Density: 7.80 g/cm³
Modulus of Elasticity: 212 GPa
Thermal Conductivity: 25.5 W/(m.K)
| Temperature | 20-100°C | 2-200°C | 2-300°C | 2-400°C |
| Coefficient of Thermal Expansion (×10-6 /K) | 10.9 | 11.9 | 12.3 | 12.7 |
Heat Treatment Process
Hardening: Heat the steel evenly to 1010-1030°C until the whole section reaches temperature. Then quench in oil to cool.
Annealing: Heat the steel to 750-780°C, hold it well at temperature, and then let it cool slowly inside the furnace.
Tempering: Heat the steel uniformly, hold it at the selected tempering temperature, and then allow it to cool in still air.
| Tempering Temperature | 400°C | 500°C | 600°C | 650°C |
| Hardness (HRC) | 54 | 56 | 48 | 42 |
Application Fields
Aluminum die casting molds, hot forging dies, hot extrusion tools, hot stamping dies, hot cutting blades, plastic injection molds
Disclaimer: the information and data presented herein are typical values for reference and are not intended as warranties to readers.
