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Amatrium Materials AI
Bohler-Uddeholm BÖHLER RAMAX® HH Modified 420F
Categories: Metal; Ferrous Metal; Stainless Steel; T 400 Series Stainless Steel

Material Notes: Chromium alloyed steel

Typical applications for Ramax® HH are: holders and bolsters for plastic molds, plastic and rubber molds with low requirements on polishability, and dies for plastic extrusion.

RAMAX® HH is characterized by:

  • Excellent machinability
  • Good corrosion resistance
  • Good hardenability
  • Uniform hardness in all directions
  • Good indentation resistance

Available Properties
  • Density, hardened and tempered to 350 HB
  • Hardness, Brinell, Hardened and tempered (Delivery condition)
  • Hardness, Brinell, tempering temp 390-1110°F
  • Tensile Strength, Ultimate, (hardened to 350 HB)
  • Tensile Strength, Ultimate, (hardened to 350 HB)
  • Tensile Strength, Yield, 68°F (hardened to 350 HB)
  • Tensile Strength, Yield, hardened to 350 HB
  • Elongation at Break, (hardened to 350 HB)
  • Elongation at Break, hardened to 350 HB
  • Reduction of Area, hardened to 350 HB
  • Reduction of Area, hardened to 350 HB
  • Modulus of Elasticity, 68°F, (hardened and tempered to 350 HB)
  • Modulus of Elasticity, hardened and tempered to 350 HB
  • Impact Test, unnotched
  • CTE, linear, hardened and tempered to 350 HB
  • Specific Heat Capacity, hardened and tempered to 350 HB
  • Thermal Conductivity, hardened and tempered to 350 HB
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