Haynes 25 (UNS: R30605)
| Bellows Materials | Haynes 25 |
| Description | A cobalt based alloy that combines good forming and excellent high temperature properties. The alloy is resistant to oxidation and carburization to 1900 °F (1038 °C). |
| Application Notes | Alloy 25 can only be hardened significantly by cold working. Cold working will increase creep strength up to 1800 °F and stress rupture strength uo to 1500 °F. Strain aging at 700 – 1100 °F improve creep and stress rupture strengths below 1300 °F. |
| Industry Uses / Products | Jet Engine Parts: turbine blades, combustion chambers, after burner parts and turbine rings. Industrial Furnaces: mufflers and turbine rings |
| UNS | R30605 |
| Specifications | AMS 5537 |
Material Properties
| Density, ρ, lbs/in^3 | 0.33 |
| Yield Strength, Sy, Psi | 55000 |
| Tensile Strength, Su, Psi | 130000 |
Chemical Compostion, %
| Iron, Fe | 3 |
| Nickel, Ni | 10 |
| Molybdenum, Mo | 1 |
| Chromium, Cr | 20 |
| Manganese, Mg | 1.5 |
| Cobalt | 51 |
| Tungsten, T | 15 |