Nimonic 90

Nimonic 90 is a precipitation hardenable Nickel-Chromium-Cobalt alloy with high strength at high temperatures and is creep and oxidation resistance up to 1688°F (920°C).

Technical Specification  
Nominal Composition

Cr: 18.0 - 210

Co: 15.0 – 21.0

Fe: 3.00

Ni - Balance


0.296 lb./in3

Modulus of Elasticity (E)

32.0 x 106 psi

Modulus of Rigidity (G)

11.9 x 103 psi

Coefficient of Expansion

8.2 µin/in.-°F (200°F)

Electrical Resistivity

51.5 µΩ.in

Thermal Conductivity

46.5 Btu/(hr/ft2/in/°F)

Min Size

0.005 in (0.130 mm)

Max Temp

704oC (1300oF)


Nimonic 90 is used in springs operating in ambient temperatures up to 1,112°F (600°C), fasteners and components requiring resistance to high temperature and corrosive environments.