Pyromet® 350

UNS #S35000

Pyromet® 350 is a chromium-nickel-molybdenum stainless steel which can be hardened by martensitic transformation and/or precipitation hardening. It offers superior corrosion resistance to other quench-hardenable martensitic stainless steels with good high temperature strength. Depending upon the heat treatment, AM 350 may have an austenitic structure for best formability or a martensitic structure with strengths comparable to those of martensitic steels. The alloy normally contains about 5 to 10% delta ferrite and its corrosion resistance approaches that of the chromium-nickel austenitic stainless steels.

Type Analysis

  • Carbon (Maximum) 0.07-0.11
  • Phosphorus (Maximum) 0.04
  • Silicon (Maximum) 0.5
  • Nickel (Nominal) 4.00-5.00
  • Manganese (Maximum) 0.50-1.25
  • Sulfur (Maximum) 0.03
  • Chromium (Nominal) 16.00-17.00
  • Molybdenum (Nominal) 2.5-3.25
  • Iron (Nominal) Balance
  • Nitrogen (Nominal) 0.07-0.13

Applications

Gas turbine compressor components such as blades, discs, rotors and shafts

Applicable Specifications

  • ASM 5548 (Strip)
  • AMS 5745 (Bar)

Billet

Flats

Rounds

Strip

Wire

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