Your Reliable Supplier for Alloy 20 Products
UNS N08020
Alloy 20 is one of the “super” stainless steels developed for maximum resistance from acid attack. Alloy 20 falls between both the stainless and nickel categories as it contains characteristics of both. Alloy 20 is an austenitic nickel-iron-chromium based alloy with additions of copper and molybdenum. Its nickel content aids in its chloride and corrosion resistance. The addition of copper and molybdenum provides resistance to hostile environments, pitting and crevice corrosion. Chromium adds to its resistance of oxidizing environments, such as nitric acid, and columbium (or niobium) reduces the effects of carbide precipitation.
Available from Inventory
Chemical Composition %
| C | Cr | Cr | Cu | Mn | Mo | Ni | P | S | Si | Ta |
|---|---|---|---|---|---|---|---|---|---|---|
| Max | 8 times | Max | Max | Max | Max | Max | Max | 8 times | ||
| 0.07 | Carbon-1.00 | 19.0-21.0 | 3.0-4.0 | 2.0 | 2.0-3.0 | 32.0-38.0 | 0.045 | 0.035 | 1.0 | Carbon-1.00 |
The information above is not warranted, guaranteed, or for design purposes.