Description
Haynes 233
HAYNES® 233™ alloy is a new Ni-Co-Cr-Mo-Al alloy that offers excellent oxidation resistance at temperatures up to 2100°F (1149°C) or higher coupled with superior creep strength – a combination of properties never before achieved in a readily fabricable alloy. The alloy obtains its exceptional oxidation resistance through the formation of a protective alumina layer, while the high creep strength is a result of solid-solution and carbide strengthening. Additionally, for use in intermediate temperature applications the alloy can be age-hardened by heat treatment to produce even greater strength. Finally, the alloy can be readily fabricated using conventional methods since it exhibits good hot workability, cold formability, and weldability.
%Chemical Composition
| Fe | Al | Ti | Mo | Co | Cr | Ni |
| 1.5 | 3.3 | 0.5 | 7.5 | 19 | 19 | 48 |
| Zr | Y | W | Ta | C | Si | Mn |
| 0.03 | 0.025 | 0.3 | 0.5 | 0.1 | 0.2 | 0.4 |
Density & Melting Range
| Melting Range (Celsius) | Density |
| 1339 – 1328 | (g/cm) 8.18 |
DM unit
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