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International Mold Steel NAK55 Precipitation Hardened Mold Steel

 

Subcategory: Tool Steel; Mold Steel; Metal

Material Notes:
Description: NAK55 is a precipitation, or age-hardened mold steel with a through hardness of approximately 40 HRc. NAK55 is ideal for use in plastic and rubber molds and other applications where impact resistance is not critical. It is a super clean, Vacuum-Arc Remelted steel with uniform grain structure, uniform hardness and excellent dimensional stability.

Unique Characteristics:

  • Vacuum-Arc Remelt manufacturing process.
  • 40 HRc hardness.
  • Uniform hardness throughout, even in heavy sections.
  • When welded, NAK leaves no witness lines after re-aging.
  • Uniform grain structure with no pin holes, inclusions or hard spots.
  • Machines up to 50% faster than 30 HRc P20 mold steels.
  • Never needs stress relieving, even after heavy machining.

Information provided by International Mold Steel.

Available Properties
  • Hardness, Rockwell C
  • Tensile Strength, Ultimate
  • Tensile Strength @ Yield
  • Elongation at Yield
  • Reduction of Area
  • Modulus of Elasticity
  • Charpy Impact
  • Magnetic Permeability
  • Magnetic Coercive Force, Hc
  • Magnetic Saturation Flux Density, Bmax
  • Magnetic Remanence, Br
  • CTE, linear 68°F
  • CTE, linear, 212°F (100°C)
  • CTE, linear, 482°F (250°C)
  • Thermal Conductivity
  
Property Data

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