Product Description

BÖHLER W350 ISOBLOC is a material produced by the electroslag remelting process (ESR) which is particularly suitable for use in large casting and forging molds. Although the steel can be classified as a 5% chromium steel, the chemical composition has been chosen to provide the best possible through-hardenability without any loss of toughness or resistance against heat-checkings. These properties make the steel the perfect choice to produce very large die casting molds, for example for mega- or giga-casting.

Property Features

  • Toughness & Ductility: very high
  • Wear Resistance: high
  • Machinability: very high
  • Hot Hardness (red hardness): high
  • Polishability: very high
  • Thermal conductivity: very high
  • Micro-cleanliness: high

Technical Specifications

High temperture strength High temperature toughness High temperature wear resistance Machinability supplied

Material Numbers

BÖHLER patent E1850



Chemical Composition

0.38 0.20 0.55 5.00 1.80 0.55 def.

Chemical composition (average %)

Available product shapes

  • Long Products
  • Open Die Forgings



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