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Product Information
Nimonic 90 Rod High Temperature Nickel
Nimonic 90 Rod is developed by replacing 20% of Ni in Nimonic-80A
with cobalt. The addition of cobalt increases the solid solubility
temperature of γ′. It also increases the solubility of carbon in
the matrix and therefore influences the characteristics of carbide
precipitation. The carbide dissolution temperature is lowered to
about 900°C. Cobalt is a γ′ stabilizer and therefore imparts better
high temperature strength. Both MC type and M23C6 type carbides are
present in this material. The physical metallurgy of Nimonic alloys
is given in ref. and the hot ductility studies are in refs.
Nimonic 90 is also known as Superimphy 90, Pyromet 90, and Udimet
90.
Nimonic 90 Rod Chemical Composition
The chemical composition of Nimonic 90 rod is given in the
following table.
| Element | Content (%) |
|---|---|
| Nickel, Ni | Bal |
| Chromium, Cr | 18-21 |
| Iron, Fe | ≤1.5 |
| Cobalt, Co | 15-21 |
| Titanium, Ti | 2-3 |
| Aluminum, Al | 1.0-2.0 |
| Manganese, Mn | ≤1 |
| Silicon | ≤1 |
| Others | Remainder |
The following table discusses the physical properties of Nimonic 90 Rod.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8.18 gm/cm3 | 0.296 lb/in3 |
The mechanical properties of Nimonic 90 Rod are tabulated below.
| Properties | ||||
|---|---|---|---|---|
| Condition | Approx. tensile strength | Approx. operating temperature depending on load^^ and environment | ||
| N/mm² | ksi | °C | °F | |
| Annealed | 800 – 1000 | 116 – 145 | – | – |
| Annealed + Aged | 1200 – 1400 | 174 – 203 | up to 550 | up to 1020 |
| Spring Temper | 1200 – 1500 | 175 – 218 | – | – |
| Spring Temper + Aged | 1500 – 1800 | 218 – 261 | up to 350 | up to 660 |
