Nimonic 90 (For Springs)
A Nickel-Chromium-Cobalt alloy being precipitation hardenable, having high stress-rupture strength and creep resistance at high temperatures up to about 950°C (1740°F). It is widely used and a well proven alloy in high temperature conditions. It can be used for any TSMC spring product such as wave springs, retaining rings and compression springs.
Nimonic® 90 is also known as Superimphy 90, Pyromet 90, and Udimet 90.
Nickel Base Wire for wire springs, flat springs and wire products
Key Features
- High stress rupture strength and high creep resistance at high temperatures
- Good resistance to high-temperature corrosion and oxidation
- Age hardenable
- High temperature dynamic applications
Typical Applications
Aerospace fasteners
Approx. Operating Temperature
Chemical Composition
| Element | Ni | Cr | Fe | Mn | C | Cu | Si | S | Co | Ti | Al | B | Pb | Bi | Ag | Zr |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min % | bal | 18.00 | – | – | – | – | – | – | 15.00 | 2.00 | 1.00 | – | – | – | – | – |
| Max % | bal | 21.00 | 1.50 | 1.00 | 0.13 | 0.20 | 1.00 | 0.015 | 21.00 | 3.00 | 2.00 | 0.02 | 0.002 | 0.0001 | 0.0005 | 0.15 |
Wire Type
- Round
- Flat Wire
- Shaped Wire
- Rope/Strand
Specifications
- AMS 5829
- BS HR 501
- BS HR 502
- BS HR 503
- BS 3075 NA 19
- ISO 15156 (NACE MR 0175)
- NCK 20TA
Designations
- W.Nr 2.4632
- W.Nr 2.4969
- UNS N07090
- AWS 030
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