1.2344 | H13 | SKD61
Hot work tool steel with high level of resistance to thermal shock and fatigue, excellent hot tensile strength properties, high wear resistance, good machinability and polishability, fine grain size with high level toughness, dimensional stability, extra fine carbide, nitridable, contains low P and S alloys, admits water cooling. This grade can be produced on request by the EFS, ESR, VAR.
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(wt%)
| W-Nr | EN | AISI | JIS |
| 1.2344 | X40CrMoV5-1 | H13 | SKD61 |
Chemical Composition
| C | Si | Mn | P | S | Cr | Mo | V |
| 0.37~0.42 | 0.80~1.20 | 0.30~0.50 | ≤0.03 | ≤0.02 | 4.80~5.50 | 1.20~1.50 | 0.90~1.10 |
Physical Properties
Density（g/cm3)：7.78
Modulus of Elasticity（Gpa): 215
Thermal Conductivity（W/（m.k)): 25
| Temperature/℃ | 20-100 | 2-200 | 2-300 | 2-400 |
| Coefficient of Thermal Expansion（×10-6） | 10.7 | 11.9 | 12.2 | 12.5 |
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 860~900°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℃ | 550 | 580 | 590 | 600 |
| Hardness (HRC) | 54 | 51 | 48 | 44.0 |
Application Fields
finds applications for hot die work, die casting and extrusion dies, wear resisting tools, pressure die casting tools, pressing tools for light and heavy metal. For the highest requirements we recommended UTOPMO2 ESR EFS.
Disclaimer: the information and data presented herein are typical values for reference and are not intended as warranties to readers.
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