Tool Steel H13

Tool Steel H13 is the premier hot-work die steel, offering an excellent combination of toughness, heat resistance, and thermal fatigue resistance. It maintains hardness at temperatures up to 540°C, making it ideal for die casting and hot forging applications.

Machinability

38/100

Tolerance

±0.01 mm

Category

Tool Steel

Material Properties

PropertyValue
Tensile Strength1,380 MPa (200 ksi)
Yield Strength1,207 MPa (175 ksi)
Hardness44-52 HRC
Density7.80 g/cm³
Machinability Rating38/100
Thermal Conductivity24.3 W/m·K
Melting Point1,427 °C
Tolerance±0.01 mm

Common Grades

H13AISI H13SKD611.2344

Advantages

  • Excellent hot hardness
  • Superior thermal fatigue resistance
  • Good toughness
  • Resists heat checking

Limitations

  • Requires careful heat treatment
  • Lower wear resistance than D2
  • Relatively expensive

Common Applications

Die casting dies

Forging dies

Extrusion mandrels

Hot shear blades

Injection mold cores

Industries Served

Die CastingForgingPlastics MoldingExtrusion

Available Surface Finishes

NitridePVD CoatingPolishedBlack Oxide

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