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Alloy 20 Nickel Alloy

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
Chemical Compositions
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
Mechanical Properties
Tensile Strength (σb/MPa) Yield Strength (σp0.2/MPa) Elongation (σ5/%)
600 320 35
Product Forms and Standards
Bar Forging Sheet/Strip Wire
ASTM B473 ASTM B462 ASTM B463 ASTM B471
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