General Description

Nimonic 90 (UNS N07090/W. Nr. 2.4632) is a precipitation hardenable nickel-chromium-cobalt alloy strengthened by the addition of titanium and aluminium. Nimonic 90 has a high stress rupture strength and creep-resistant at temperatures to about 920°C. Nimonic 90 is better suited for extremely high temperatures than Inconel X 750 (or Inconel 718).

Chemical Composition

Grade Ni% Cr% Co% C% Si% Cu% Fe% Mn% Ti% Al% B% S% Zr%
Nimonic 90 Bal. 18.0-21.0 15.0-21.0 Max 0.13 Max 1.0 Max 0.2 Max 1.5 Max 1.0 2.0-3.0 1.0-2.0 Max 0.02 Max 0.015 Max 0.15


UNS N07090

Werkstoff Nr. 2.4632


Nimonic 90 Wire/Bar/Forging: BS HR2/HR501/HR503

Nimonic 90 Plate/Sheet/Strip: BS HR202

Physical Properties

Density:8.2 g/cm3

Melting Point: 1320°C-1400 °C

Mechanical Properties

Solution Annealed

Tensile: Min 820 MPa

Yiled: Min 590 MPa

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