This specification covers a premium aircraft-quality, low-alloy Ni-Cr-Mo steel in the form of bars, forgings and forging stock requiring high tensile and toughness values, particular in large cross sections in the hardened and tempered condition.

These products have been used typically for parts requiring a through-hardening capability up to 3.5 inches (89 mm) in nominal thickness at time of heat treatment but usage is not limited to such applications. E.g. highly stressed components and parts for the aircraft industry, Tracks, helicopter shafts, bolts and screws.

Melting Route

Airmelted + VAR


Veredelbaar Ni-Cr-Mo-staal voor hoge stevigheids- en taaiheidsvereisten bij grote veredelingssecties.

Technische gegevens

Materiaal nummers

1.6944 G43400 ≈40NiCrMo6 AISI: 4340 4340

Standaards en Normen

A370 E10 6414 6484

Beschikbare uitvoeringen

  • Producten van vrij smeden
  • Stafstaal


Beurzen & shows


BÖHLER Nederland

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