Alloy 20 Nickel Alloy
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The Alloy 20 nickel alloy is a nickel-iron-chromium alloy with additions of copper and molybdenum. The combination of limited chemical compositions contributes to its outstanding resistance to various corrosions in oxidizing and reducing environments, to chloride-ion stress corrosion cracking and to localized attack.
In many chemical processing media, alloy 20 also has remarkable corrosion resistance. The resistance of the nickel steel alloy to various corrosions enables it to be perfect for hydrometallurgy and sulfuric acid industry. In material industry, additionally, this metal alloy can be used for rolled steel, forgings, strips, bolts, screw nuts, etc.
Specifications of Alloy 20 nickel alloy| UNS | W. Nr |
| N08020 | 2.4660 |
| Composition | Ni | Cr | Fe | Mo | C | Mn | Si | S | Cu | P | |
| Content (%) | Min. | 32 | 19 | Bal. | 2 | 3 | |||||
| Max. | 38 | 21 | 3 | 0.07 | 2 | 1 | 0.03 | 4 | 0.03 | ||
| Tensile Strength (σb/MPa) | Yield Strength (σp0.2/MPa) | Elongation (σ5/%) |
| 600 | 320 | 35 |
| Bar | Forging | Sheet/Strip | Wire |
| ASTM B473 | ASTM B462 | ASTM B463 | ASTM B471 |
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