Chemical
Analysis
C .04 - .08
MN .60 max
Fe 0.7 max
S .007 max
Si .40 max
Cr 19.0 - 21.0
Ni bal
Ti 2.0 - 3.0
Al + Ti 2.4 – 2.8
Cu 0.20 max
Al 0.60 max
Co 19.0 – 21.0
B .005 max
Pb .002 max
Ag .0005 max
Ti 1.9 -2.4
Mo 5.6 – 6.1

Nimonic 263 is a precipitation-hardenable nickel-chromium-cobalt alloy with an addition of molybdenum for solid-solution strengthening. Nimonic 263 has high strength and corrosion resistance along with good formability and high-temperature ductility in welded structures. Nimonc 263 is especially suitable for sheet applications. Used in gas turbines for rings, casings, and various sheet fabrications.

Available forms of Nimonic 263®​ are round, flats, extruded section, tube, plate, sheet, and wire.