NIMONIC® Alloy 90

  • UNS N07090
  • WERKSTOFF 2.4632

Key properties (in annealed condition)

  • Tensile strength: 170 Ksi
  • Yield strength: 109 Ksi
  • Elongation: 30%

Composition

  • Nickel (Ni): Balance
  • Chromium (Cr): 18-21%
  • Cobalt (Co): 15-21%
  • Titanium (Ti): 2-3%
  • Iron (Fe): 1.5% max
  • Silicon (Si): 1% max
  • Manganese (Mn): 1% max
  • Aluminium (Al): 1-2%
  • Copper (Cu): 0.2% max
  • Zirconium (Zr): 0.15% max
  • Carbon (C): 0.13% max
  • Boron (B): 0.02% max
  • Sulphur (S): 0.015% max
  • Lead (Pb): 0.002% max

NIMONIC® alloy 90 is a higher strength alloy with additions of Cobalt , Titanium and Aluminium which permitted operational temperatures to rise to approximately 950 deg C in some applications. The material was introduced in 1955. The alloy is used as turbine blading, bolting, fasteners and springs up to approx 600 deg C.

Forms available for the vast majority of our grades

  • Plate, sheet and strip
  • Round, square, flat, angle and hexagon bar
  • Seamless and welded pipe and tube
  • Forged socket welded and threaded fittings
  • Butt weld fittings
  • Flanges