Product Description

BÖHLER S690 MICROCLEAN – "The simple one" The tough high-speed steel for challenging machining and cold forming.

Property Features

High speed steel produced by powder- metallurgy methods with good red hardness, compressive strength and wear resistance. The PM technology imparts to the material also excellent toughness and machinability properties, e.g. highly satisfactory grindability.

Technical Specifications

Compressive strength Grindability Red hardness Toughness Wear resistance

Material Numbers

1.3351 HS6-5-4 AISI: ~ M4

Chemical Composition

1,35 0,60 0,30 4,10 5,00 4,10 5,90

Chemical composition (average %)

Available product shapes

  • Long Products
  • Plates

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