Nickel alloy 20 is a low-carbon, niobium-stabilized austenitic nickel/iron/chromium alloy with additions of molybdenum and copper. It exhibits exceptional corrosion resistance in chemical environments containing phosphoric acid, nitric acid, chlorides, and sulfuric acid. It also has good mechanical properties at both ambient and elevated temperatures. Alloy-20 is used in a variety of industries, including chemical processing, petrochemical and refining, marine, pharmaceutical, and food processing. End-use applications include storage tanks, mixing tanks, agitators, pump and valve parts, food processing equipment, fasteners, and fittings. Alloy 20 has a very good resistance to sulfuric acid. This alloy also shows suitable resistance in phosphoric acid, nitric acid, and aqueous salt solutions. Alloy 20 asme is an excellent option when chloride stress corrosion cracking is an issue, as it resists pitting and crevice corrosion.
Alloy 600 / Inconel 600 is combination of Nickel Chromium and Iron providing a standard material for the chemical industry and the automotive engine, aero engine and airframe sectors. Controlled chemical composition limits are applied in the nuclear industry to eliminate the risk of stress corrosion cracking by high purity water containing chloride ions.
Nickel Iron alloys are a relatively new group of materials to become available. Each alloy has very specific, often unique, properties and the applications for these alloys are often at the cutting-edge of technology Nickel alloys are of particular interest to designers that use these materials due to the thermal expansion and magnetic permeability characteristics of these alloys. Nickel Iron alloys have been developed over recent years to meet a demand for materials used in specific high-technology applications. Strength, corrosion resistance and conductivity are key factors with these alloys, but it is their thermal expansion and magnetic permeability characteristics that are often the vital attributes that designers seek. High-tech industries such as automotive, medical, power generation, aerospace, electronics, and Petro-chemical have benefited from the development of this range.
Alloy 625 / Inconel 625 is used for its high strength, excellent fabricability (including joining), and outstanding corrosion resistance. It has become a standard material of construction in a wide variety of industrial applications, which is unusual for an alloy. Alloy 625 is valuable in that it is versatile and able to solve a wide variety of design and application problems.
INCONEL® alloy C276 has been associated with outstanding corrosion resistance in both acid and alkali media. The Nickel-Chromium-Molybdenum superalloy combined with a controlled amount of Tungsten has made this the material of choice for severe corrosive environments. The low carbon content minimises the carbide precipitation during heat treatment and during welding. As a result in as-welded structures, the excellent pitting and crevice corrosion resistance is maintained. The welding consumable is often overmatched with lower alloyed materials to provide security in the weld zone.
