H13 | SKD61
H13 is a chromium-molybdenum-vanadium hot work tool steel offering excellent high-temperature strength, toughness, and thermal fatigue resistance. It provides good wear resistance, resistance to thermal cracking, and dimensional stability during heat treatment, making it suitable for demanding hot working 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 | Cr | Mo | V |
| 0.30~0.40 | 0.80~1.20 | 0.20~0.40 | 4.75~5.50 | 1.25~1.75 | 0.80~1.20 |
Physical Properties
Density: 7.78 g/cm³
Modulus of Elasticity: 210 GPa
Thermal Conductivity: 25.0 W/(m.K)
| Temperature | 20-100°C | 2-200°C | 2-300°C | 2-400°C |
| Coefficient of Thermal Expansion (×10-6 /K) | 10.7 | 11.9 | 12.2 | 12.5 |
Heat Treatment Process
Hardening: Heat the steel evenly to 990~1040°C until the whole section reaches temperature. Then cool in air.
Annealing: Heat the steel to 840~900°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 540~650°C, hardness 53~38HRC
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.
