UNS N08020 is another name for Alloy 20. Alloy 20 is a nickel-chromium-molybdenum alloy that is intended for use in sulfuric acid applications. Other industries that benefit from its corrosion resistance include the chemical, food, pharmaceutical, power generation, and plastics industries. Alloy 20 nickel tubing is resistant to pitting and chloride ion corrosion and its copper content make it resistant to sulfuric acid. Alloy 20 Tubes is a nickel alloy, not stainless steel (ASTM). It is frequently chosen to address stress corrosion cracking issues that can occur with 316L stainless. Carpenter 20 is the most common name for it. This high-quality alloy is also used in high-temperature exchangers, combining tanks, metal cleaning and pickling tools, and piping.
In chemicals containing chlorides as well as sulfuric, phosphoric, and nitric acids, Alloy 20 Tube has excellent resistance to general corrosion, pitting, and crevice corrosion. Carpenter 20 tubing is also known as CB-3 tubing, AL 20 tubing, Carlson Alloy C20 tube, Nickelvac 23 tube, and Nicrofer 3620 Nb tube.
Features of Alloy 20
- Sulfuric acid basic corrosion resistance is excellent.
- Excellent resistance to rust cracking caused by chloride stress.
- Outstanding mechanical properties and fabricability.
- For the duration of the welding, there is very little carbide precipitation.
- The corrosion resistance to extremely hot sulfuric acids is outstanding.
Chemical processing, petrochemical and refining, marine, pharmaceutical, and food processing are just a few of the industries that use Alloy 20 Tubes. End-use applications include storage tanks, mixing tanks, agitators, pump and valve parts, food processing equipment, fasteners, and fittings. Applications are limited to a maximum temperature of 1000°F, according to ASME. It is also critical to ascertain whether the required corrosion resistance can be attained in the given environment.
Applications of Alloy 20 Tubes:
- Oil tubes.
- Gas Tubes.
- Fluid Tube.
- Boiler.
