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Multimet® alloy
MULTIMET alloy
MULTIMET alloy (also known as Alloy N-155) is a solution-hardened superalloy with good oxidation resistance and very high strength at elevated temperature.
Heat-resistant alloy Multimet (UNS R30155):
- Precursor of alloy 556
- Widely used in aircraft gas turbines
- Good oxidation resistance and good ductility
| Chemical composition (weight %) | ||||||||||
| Fe | Ni | Co | Cr | Mo | W | Mn | Nb+Ta | Si | N | C |
| Rest | 20 | 20 | 21 | 3 | 2.5 | 1.5 | 1 | 1* | 0.15 | 0.12 |
| *Maximum | ||||||||||
| Density |
| 8,2 kg/dm3 |
Product description Haynes HTA - Haynes Multimet Alloy
MULTIMET was widely used for forged or composite components in older aircraft or stationary gas turbine engines. For more modern applications, MULTIMET has been largely replaced by HAYNES® 556 alloy, a similar alloy with improved properties. MULTIMET alloy can be formed by standard techniques both cold and hot and can be welded by conventional methods.
Availability Haynes Multimet alloy
Multimet alloy is available as sheet and welding consumable. Dimensions on request.
| UNS | R30155 | All versions |
| SAE | AMS 5532 | Plate |
| SAE | AMS 5769,5768 | Bar, forgings and rings |
| SAE | AMS 5794 | Welding wire |
| SAE | AMS 5795 | Coated electrodes |
| Density 8,20 kg/dm3 | ||
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