Chemical
Analysis
C .13 max
MN 1.0 max
Fe 1.5 max
S 0.015 max
Si 1.0 max
Cr 18.0 – 21.0
Ni bal
Ti 2.0 - 3.0
Cu 0.2 max
Al 1.0 – 2.0
Co 15.0 - 21.0
B .02 max
Pb .0020 max
Zr 0.15 max

Nimonic 90 is a precipitation-hardenable nickel-chromium-cobalt alloy having high stress-rupture strength and creep resistance at temperatures to about 1700°F (920°C). Nimonic 90 also has good resistance to high-temperature corrosion and oxidation. Nimonic 90 is used for blades and discs in gas turbines, hot-working tools, and springs.

Available forms of Nimonic 90​ are round, flats, extruded section, plate, sheet, strip, tube, and wire.