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
Trademarks | GB | JIS | KS | ASTM | UNS | DIN | W.Nr | GOST | BS | NF |
---|---|---|---|---|---|---|---|---|---|---|
Nimonic 90 | GH4090 | – | – | – | N07090 | NiCr20Co18Ti | 2.4632 | – | NiCr20Ti HR 5 | NC20T |
Product Forms
Wire, Bar, Strip, Sheet, Plate, Tube, Pipe, Pipe Fittings, Forgings
Chemical Composition,%
C | P | S | Mn | Si | Cr | Ni | Co | Al | Ti | Cu | Fe |
---|---|---|---|---|---|---|---|---|---|---|---|
≤0.13 | ≤0.02 | ≤0.015 | ≤1.00 | ≤1.00 | 18.00~21.00 | Bal | 15.00~20.00 | 1.00~2.00 | 2.00~3.00 | ≤0.20 | ≤1.50 |
Typical Physical & Mechanical Properties (RT, Precipitation Hardened)
Density, g/cm3 | Melting Point, ℃ | Tensile Strength, MPa | Yield Strength, MPa | Elongation,% |
---|---|---|---|---|
8.18 | 1310-1370 | ≥1080 | ≥690 | ≥20 |
Specifications
Rod, Bar, Wire, Forgings | BS HR2, HR501, HR502, HR503, SAE AMS 5829 |
---|---|
Plate, Sheet, Strip | BS HR 202 |
Pipe, Tube | BS 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.