901

UNS #N09901

901 is a chromium-nickel-iron base superalloy designed for high strength and corrosion resistance in the temperature range of 1000-1400°F (538-760°C). It is hardened by the precipitation of nickel, titanium, and aluminum compounds of the Ni3 (Al, Ti) type.

Type Analysis

  • Carbon (Maximum) 0.1
  • Silicon (Maximum) 0.6
  • Nickel (Nominal) 40.00 - 45.00
  • Titanium (Nominal) 2.35 - 3.10
  • Manganese (Maximum) 1
  • Chromium (Nominal) 11.00 - 14.00
  • Molybdenum (Nominal) 5.00 - 7.00
  • Iron (Nominal) Balance
  • Aluminum (Nominal) 0.35
  • Copper (Nominal) 0.5
  • Boron (Nominal) 0.010 - 0.020

Applications

Turbine rotors, compressor discs, hubs, and shafts.

Applicable Specifications

  • AMS 5660
  • AMS 5661
  • PWA 1022
  • PWS 1003
  • GE B50A305

Billet

Rounds

Strip

Wire

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