Project Description

Nimonic 90 (UNS N07090)

Nimonic 90 (UNS N07090) is a precipitation hardenable nickel-chromium-cobalt alloy strengthened by the addition of Titanium and Aluminium. Alloy 90 has a high stress rupture strength and creep-resistant at temperatures to 920°C.

Equivalent Grades

TrademarksGBJISKSASTMUNSDINW.NrGOSTBSNF
Nimonic 90GH4090N07090NiCr20Co18Ti2.4632NiCr20Ti
HR 5
NC20T

Product Forms

Wire, Bar, Strip, Sheet, Plate, Tube, Pipe, Pipe Fittings, Forgings

Chemical Composition,%

CPSMnSiCrNiCoAlTiCuFe
≤0.13≤0.02≤0.015≤1.00≤1.0018.00~21.00Bal15.00~20.001.00~2.002.00~3.00≤0.20≤1.50

Typical Physical & Mechanical Properties (RT, Precipitation Hardened)

Density, g/cm3Melting Point, ℃Tensile Strength, MPaYield Strength, MPaElongation,%
8.181310-1370≥1080≥690≥20

Specifications

Rod, Bar, Wire, ForgingsBS HR2, HR501, HR502, HR503, SAE AMS 5829
Plate, Sheet, StripBS HR 202
Pipe, TubeBS HR 402

Features

Alloy 90 has a high stress rupture strength and creep-resistant at temperatures to 920°C.

Applications

Nimonic Alloy 90 is typically used in extreme stress applications such as turbine blades, hot working tools, exhaust reheaters, disc and high-temperature springs.