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Alloy 422 Stainless Steel Bar - AMS 5655


Alloy 422 stainless bar is a hardenable, martensitic stainless steel designed for service temperatures as high as 1200 F. This grade develops high mechanical properties via heat treatment and offers good scaling and oxidation resistance.  Typical applications have included buckets and blades in steam turbines, high temperature bolting and valve and valve trim.


  • 422, 422 stainless bar, ams 5655 bar
    422 Stainless Steel

422 Bar

Standard Inventory Specifications

  • UNS S42200
  • AMS 5655
  • ASTM A 176
  • ASTM A 565
  • AMSE SA 176
  • B50A951 A1
  • B50A951 A2
  • AISI 636

Common Trade Names

  • 422 stainless
  • Alloy 422
  • 422

Inventory Size Range

  • Bar : 0.500" - 13.000"
  • Standard Inventory Lengths: 10-12 feet rl's.

The technical data provided is for information only and not for design purposes. It is not warranted or guaranteed.

Chemical Composition of 422 Stainless Steel

Element Percent By Weight
Type 422 ss
C Carbon 0.20 – 0.25%
Cr Chromium 11.50 – 13.50%
P Phosphorus 0.040% max
Mo Molybdenum 0.75 – 1.25%
S Sulfur 0.030% max
W Tungsten 0.75 - 1.25%
Si Silicon 1.00% max
V Vanadium 0.20 – 0.50%
Mn Manganese 1.00% max
Fe Iron Balance

Common Applications of Alloy 422 Stainless Steel

  • Power Generation 
  • Compressors
  • Steam turbines
  • Aircraft parts
  • High-temperature bolting

Physical Properties of 422 Stainless Steel

Density

Heat Treatment

Hardening

0.280 lb/cubic inch

Heat treatment is sensitive as the alloy is very susceptible to cracking

In the annealed condition, typical hardness is Rc 21/25.

In the quenched and tempered condition, hardness is typically Rc 45/50.

Mechanical Properties of 422 stainless steel

422 bar is readily machinable in the annealed condition with machining characteristics similar to those of alloy 420 stainless steel.


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