431, S43100, SAE 51431 Ni BEARING HARDENABLE Cr STAINLESS STEEL

Description

431 is a nickel bearing chromium steel which can be treated to exceptionally high physical properties. In the heat treated conditions, its corrosion resistance is superior to similar martensitic types. This grade is ferro-magnetic when annealed or heat treated. Because it is characteristically a two phase alloy, the normal structure contains ferrite and martensite. However depending upon application, the chemistry can be balanced to provide an essentially ferrite-free structure and higher mechanical properties.

Applications

431 stainless is widely used in highly stressed aircraft components, valves, also pump and pump shafts. Marine components,

Specifications

UNS# S43100 431, SAE 51431 Ni BEARING HARDENABLE Cr STAINLESS STEEL
AMS 5628E 431 BARS, WIRE, FORGING, AND TUBING
ASTM A-276 BARS & SHAPES
ASTM A-473 FORGINGS
ASTM A-493 WIRE & WIRE RODS FOR COLD HEADING & COLD FORGING
ASTM A-511 SEAMLESS MECHANICAL TUBING
ASTM A-579 FORGINGS
ASTM A-580 WIRE
DOD-F-224669 FORGING & FORGE STOCK, STEEL BARS & BILLET FOR REFORGING
MIL-B-6812E BOLTS, AIRCRAFT
MIL-S-18732D BARS, WIRE, FORGING STOCK, FORGED TUBING (431) SPECIAL QUALITY
MIL-S-8967 BARS, WIRE, FORGING STOCK, FORGINGS, MECHANICAL TUBING (431) PREMIUM QUALITY
SAE J405, SAE 51431 CHEMICAL COMPOSITIONS OF SAE WROUGHT STAINLESS STEELS
SAE J412 GENERAL CHARACTERISTICS & HEAT TREATMENTS OF STEELS

Available Forms

• Bar
• Extrusion-shapes
• Forge
• Sand Castings
• Wire