431 Stainless Steel Sheet

Applications of stainless steel 431 this alloy is used for forged aircraft fasteners and fittings and should be considered for structural parts in marine atmospheres.

431 stainless steel sheet. Type 431 is used in highly stressed aircraft components fasteners bomb racks bolting pump shafts and valve stems. This grade is often used in the aerospace industry as fittings and boltings requiring high yield strength. 431 stainless steel has been designed to improved corrosion resistance and toughness properties than other 400 stainless grades especially in a quench hardenable stainless. This alloy has excellent corrosion resistance for a 400 series stainless and can be heat treated to high strength levels.

Stainless steel and special alloys. Type 431 is a hardenable martensitic stainless steel alloy which has a combination of high tensile and torsional strength this makes it well suited to shaft manufacture. Type ss 431 sheets plates has excellent tensile and torque strength and not recommended for cold operations. 431 has great impact strength at a high hardness level.

The alloy is intended for use in applications requiring good strength and toughness combined with reasonable corrosion resistance. 15 5 ph 15 7 mo 17 4 ph 17 7 ph custom 450 custom 455 am 350. Grade 431 stainless steels have considerable resistance to salt water but they are less resistant to tropical water when compared to that of grade 316 steels. Type stainless steel 422 sheets plates are hardenable martensitic for temperatures as high as1200 f.

Grade 431 steels have overall corrosion resistance similar to or slightly lower than that of grade 304 steels. Stainless 431 offers the best corrosion resistance of the conventional martensitic stainless grades. Stainless 431 has the best corrosion resistance to marine atmospheres also resists attack by many petroleum products and organic materials and several acidic environments. Technical data sheet alloy 431 is the most corrosion resistant of the martensitic grades.

Due to alloy 431 s excellent tensile and torque strength and good toughness it is used in structural parts that are exposed to marine atmosphere also for aircraft fasteners and fittings. 431 stainless steel is a martensitic stainless steel that is aod melted.