HAYNES 556
Product Details
HAYNES 556
List of Features
Haynes 556
HAYNES® 556® alloy (UNS R30556) is an iron-nickel-chromium-cobalt alloy that combines effective resistance to sulfidizing, carburizing and chlorine-bearing environments at high temperatures with good oxidation resistance, fabricability, and excellent high-temperature strength. It has also been found to resist corrosion by molten chloride salts and other salts, and is resistant to corrosion from molten zinc.
%Chemical Composition
| N | Ta | W | Mo | Cr | Co | Ni | Fe |
| 0.2 | 0.6 | 2.5 | 3 | 22 | 18 | 20 | Balance |
| Zr | La | B | C | Al | Mn | Nb | Si |
| 0.02 | 0.02 | (max) 0.02 | 0.1 | 0.2 | 1 | (max) 0.3 | 0.4 |
Density & Melting Range
| Melting Rrange (Celsius) | Density |
| 1415 - 1330 | (g/cm) 8.23 |
Hardness
| Hardness (HRW) | Form |
| 91 | Sheet |
| 92 | Plate |
| 89 | Bar |
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