Nimonic 263 Rod: High-Performance Nickel-Cobalt Alloy for Extreme Environments
Nimonic 263 Rod (UNS N07263, W. Nr. 2.4650) is a high-strength, age-hardenable nickel-cobalt-chromium-molybdenum alloy engineered for demanding applications in gas turbines and other high-temperature environments. Renowned for its exceptional fabrication characteristics and intermediate temperature tensile ductility, it is ideally suited for components requiring both strength and formability.
| Element | Min (%) | Max (%) |
|---|---|---|
| C | 0.04 | 0.08 |
| Si | – | 0.40 |
| Mn | – | 0.60 |
| S | – | 0.007 |
| Ag | – | 0.0005 |
| Al | 0.30 | 0.60 |
| B | – | 0.005 |
| Bi | – | 0.0001 |
| Co | 19.0 | 21.0 |
| Cr | 19.0 | 21.0 |
| Cu | – | 0.20 |
| Fe | – | 0.70 |
| Mo | 5.60 | 6.10 |
| Pb | – | 0.002 |
| Ti | 1.90 | 2.40 |
| Ti+Al | 2.40 | 2.80 |
| Ni | Balance | – |
| Condition | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Operating Temp. (°C) |
|---|---|---|---|---|
| Annealed | 800–1000 | – | – | Up to 800 |
| Annealed + Aged | 1000–1200 | – | – | Up to 800 |
| Spring Temper | 1200–1500 | – | – | Up to 800 |
| Spring Temper + Aged | 1000–1200 | – | – | Up to 800 |
| Property | Value |
|---|---|
| Density | 8.36 g/cm³ |
| Melting Point | 1300-1355 °C |
| Coefficient of Expansion | 10.3 μm/m·°C |
| Modulus of Elasticity | 224 kN/mm² |
| Condition | Temperature (°C) | Time | Cooling Method |
|---|---|---|---|
| Solution Treatment | 1150 | 1.5–2.5 hrs | Water Quench |
| Age Hardening | 800 | 8 hrs | Air Cooling |