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Chrome Moly P22

Penn Stainless offers Chrome Moly P22 in welded large diameter pipe.

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General Properties

Chrome Moly P22 stainless is highly resistant to cracking from hydrogen attack, as well as hot sulfide corrosion cracking. Chrome Moly P22 has a better overall strength to weight ratio than steel, which allows for reduced weight and thinner walls in P22 products. This grade of steel has strong resistance to rupturing and high pressures and/or temperatures, and is designed for high temperature and pressure services.  Chrome Moly P22 is used in the power generation industry, the petro-chemical industry, the petroleum industry, and in high temperature applications because of its tensile strength, corrosion resistance and high-temperature strength.

Common Applications

  • Petroleum, petro-chemical refinery process, power generation, high temp




  • Resistant to hot sulfide corrosion cracking
  • High resistance to rupturing at high temperatures and pressures


  • Chrome moly P11 shows excellent weldability

Heat Treatment

  • Can be used for NACE Applications where sour environments are under high temp and pressure
  • Ideal for creep rupture applications
  • Can handle high temperatures with very low elasticity

Chemical Properties:

Element Composition
Carbon 0.05-0.15
Manganese 0.30-0.60
Chromium 2.00-2.50
Molybdenum 0.87-1.13

Physical Properties:

Grade Tensile Strength (k.s.i.) Yield Strength (k.s.i.) 0.2% offset Elongation %




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