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.