Haynes 282, N07208, Nickel Alloy Spring Wire
Haynes 282, N07208, Nickel Alloy Spring Wire
Haynes 282 is a new alloy developed for high temperature structural applications which has excellent creep strength in the temperature range of 650 – 930 °C (1200 – 1700 °F), surpassing that of Waspalloy and Rene 41. Haynes 282 possesses a unique combination of creep strength, thermal stability, weldability and fabricability that is not found in currently available commercial alloys. Its features make it suitable for critical gas turbine applications such as combustors, turbine and exhaust sections, and nozzle components.
Key Features
New alloy developed for high temperature structural applications which has excellent creep strength in the temperature range of 650 – 930 °C (1200 – 1700 °F), surpassing that of Waspalloy and Rene 41.
Excellent creep strength.
Typical Applications
Exhaust nozzle components in augmented aircraft gas turbines, hot gas paths in land based gas turbines.
A potential choice for high temperature development parts.
High temperature static applications.
Designations
UNS N07208
AWS 062
Chemical Composition
| Element | Min % | Max % |
| Al | 1.38 | 1.65 |
| B | 0.003 | 0.01 |
| C | 0.04 | 0.08 |
| Nb | – | 0.2 |
| Co | 9 | 11 |
| Cr | 18.5 | 20.5 |
| Cu | – | 0.1 |
| Fe | – | 1.5 |
| Mn | – | 0.3 |
| Mo | 8 | 9 |
| Ni | bal | |
| P | – | 0.015 |
| S | – | 0.015 |
| Si | – | 0.15 |
| Ta | – | 0.1 |
| Ti | 1.9 | 2.3 |
| W | – | 0.5 |
Physical Properties
| Density | Melting Point | Coefficient of Expansion |
| 8.27 g/cm³ | 1300 – 1375 °C | 12.1 μm/m °C (20 – 100 °C) |
| 0.3 lb/in³ | 2370 – 2510 °F | 6.7 x 10-6 in/in °F (70 – 212 °F) |
Heat treatment
| Condition | Type | Temperature | Time | Cooling |
| Spring Temper | Stablise | 1010 °C (1850 °F) | 2 Hr | Air |
| Spring Temper | Age Harden | 790 °C (1450 °F) | 8 Hr | Air |
Mechanical Properties
| Annealed | Approx. tensile strength | 800 – 1200 N/mm² | 116 – 174 ksi |
| Approx. operating temperature depending on load** and environment | Contact Alloy Wire for information | Contact Alloy Wire for information | |
| Spring Temper | Approx. tensile strength | 1300 – 1600 N/mm² | 190 – 232 ksi |
| Approx. operating temperature depending on load** and environment | Contact Alloy Wire for information | Contact Alloy Wire for information | |
| Spring Temper + Stabilised and Aged | Approx. tensile strength | 1000 – 1300 N/mm² | 145 – 190 ksi |
| Approx. operating temperature depending on load** and environment | Contact Alloy Wire for information | Contact Alloy Wire for information |
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