Stainless steel – Grade 431

Specification

431 stainless steel is a martensitic stainless steel that is AOD melted. This alloy has excellent corrosion resistance for a 400 series stainless and can be heat treated to high strength levels, high toughness and tensile properties. This grade is often used in the aerospace industry as fittings and boltings requiring high yield strength. The excellent corrosion resistance also lends itself well to the marine industry.

Application

Laboratory equipment, Marine systems, Beater bars, Pump and propeller shafts, Nuts and bolts. These steels, however, cannot be cold-worked owing to their high yield strength, hence they are suitable for operations such as spinning, deep drawing, bending or cold heading.

Chemical Analysis %