Nimonic 263

Nickel

Nimonic 263 nickel alloy

Nimonic 263 supplied by Shanxi Youte Steel (jlhsteel.net).

Chemical Composition (%)

CR	19
CO	19
MO	5.6
TI	1.9
AL	0.3

Chinese Standard

ASTM B637

Equivalent Grades

UNS N07263

Applications

Aerospace, chemical processing, marine, nuclear, heat resistance.

Available Forms

Bar, Plate, Sheet, Tube, Wire, Forging, Pipe

Uses

Cobalt alloy with exceptional wear, galling and high-temperature corrosion resistance. Used in cutting tools, valve seats, dental and orthopaedic implants, gas-turbine parts.

Heat Treatment

Solution treated and aged (≈650–800 °C) for wear alloys; many Stellite-type grades are used as-cast or hardfaced.

Precautions

Very abrasive to tooling when hardfaced; machine in annealed condition where possible. Excellent galling resistance reduces need for lubrication.

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