NIMONIC® Alloy 263

2.4650 / UNS N07263

A nickel-cobalt-chromium alloy with additions of molybdenum which can achieve high strength through age-hardening. The alloy was designed specifically to combine good high temperature strength properties with excellent formability (in the annealed condition).  It has high strength at temperatures up to 816°C and excellent oxidation resistance up to 982°C. The alloy is particularly suited to sheet fabrications and is used in both aircraft turbines and industrial gas turbines for rings, casings, low temperature combustors and transition liners. 

Stock program

  • 1.20 mm
  • 1.60 mm
  • 3.17 mm

Details at a glance

Chemical composition

Ni
Balance
Cr
19.00 - 21.00 %
Co
19.00 - 21.00 %
Mo
5.60 - 6.10 %
Ti
1.90 - 2.40 %
Al
max. 0.60 %
Ti + Al
2.40 - 2.80 %
Fe
max. 0.70 %
Mn
max. 0.60 %
Si
max. 0.40 %
Cu
max. 0.20 %
S
max. 0.007 %
B
max. 0.005 %

Density

g/cm³
8.36
lb/in³
0.302

® trademark of the Special Metals Corporation group of companies

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