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Ensinger PEI
Assab Steels 618 Plastic Mold Material
Categories: Metal; Ferrous Metal; Alloy Steel; Chrome-moly Steel

Material Notes: ASSAB 618 is a vacuum-degassed Cr-Ni-Mo-alloy steel which is supplied in the hardened and tempered condition. ASSAB 618 is manufactured to consistently high quality standards with a controlled sulfur content (max. 0.015%) giving a steel with the following characteristics:
  • Good polishing and photo-etching properties
  • Good machinability
  • High purity and good homogeneity
  • Uniform hardness in all dimensions


  • Injection moulds for thermoplastics
  • Extrusion dies for thermoplastics
  • Blow moulds
  • Forming tools, press-brake dies (possibly flame hardened or nitrided)
  • Machine or structural components, shafts.

AISI P20 modified, W.-Nr. 1.2738

Available Properties
  • Density
  • Density
  • Hardness, Brinell, hardness supplied.
  • Hardness, Brinell, tempering at 600°C
  • Hardness, Brinell, tempering at 400°C
  • Hardness, Brinell, tempering at 200°C
  • Tensile Strength, Ultimate, Rm. Bar. 310 HB
  • Tensile Strength, Ultimate, Rm. Bar. 310 HB
  • Tensile Strength, Yield, Rp0.2. bar. 310 HB
  • Tensile Strength, Yield, Rp0.2. bar. 310 HB
  • Elongation at Break, bar; 310 HB
  • Elongation at Break, bar; 310 HB
  • Reduction of Area, bar; 310 HB
  • Reduction of Area, bar; 310 HB
  • Modulus of Elasticity
  • Modulus of Elasticity
  • Impact Test, 310 HB
  • Impact Test, bar. 310 HB.
  • Impact Test, 310 HB.
  • CTE, linear
  • Specific Heat Capacity
  • Thermal Conductivity
  • Thermal Conductivity
  • Carbon, C
  • Chromium, Cr
  • Iron, Fe
  • Manganese, Mn
  • Molybdenum, Mo
  • Nickel, Ni
  • Silicon, Si
Property Data

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