Stainless Steel / 422 ANN

422 Annealed is a hardenable martensitic stainless steel which is being widely used for high temperatures up to 1200F. It is capable of being heat treated to various high strength levels. The material is ideal for products that require high strength/weight ratios from room temperature to 1200F. Adaptable to applications where maximum resistance to corrosion is not required. Resistant to the corrosive action of the atmosphere, fresh water, steam, and a variety of the milder acids and alkalies. Grade 422 is often used to produce Aircraft Parts, Steam & Gas Turbine Components, High Heat Components and Rotors. (UNS S42200)

Chemical Makeup

Element Min Max
Carbon, C 0.2 0.25
Manganese, Mn - 1
Silicon, Si 0.2 0.6
Sulfur, S - 0.03
Phosphorus, P 0.04
Chromium, Cr 11 13.5
Nickel, Ni 0.5 1
Molybdenum, Mo 0.75 1.25
Copper, Cu - 0.5
Tungsten, W 0.75 1.25
Vanadium, V 0.17 0.3

Common Applications

  • Aerospace Aerospace
  • Industrial Industrial


  • Heat Treated To High Strength
  • Good Strength To Weight Ratio
  • Good In High Tempuratures
  • Minimal Corrosion Resistance

We stock 422 ANN to the following specifications:

  • AMS-5655 CAP. OF
  • ASTM-A-565 GRD 616
  • B50A125 CAP. OF
  • B50A951A1 CAP. OF
  • DOD-F-24669/7 (CHECK T.R. CR CONT)
  • UNS-S-42200

Click on a cross-section to see the sizes we stock:

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