Melting Route

Airmelted + Remelted

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

Material Numbers

BÖHLER patent E1850



Chemical Composition

Chemical composition (average %)
0.38 0.20 0.55 5.00 1.80 0.55 def.

Available product shapes

Information on Long Products ) Presented data refer exclusivly to long products. Please observe the detailed explanations at the end of the data sheet (pdf).

  • Long Products
  • Open Die Forgings
  • Plates


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