What is Hastelloy C276 used for?
Gnee Steel offers Hastelloy C-276 nickel alloy plate in thicknesses ranging from 3/16 inch (4.8 mm) to 2 ½ inches (63.5 mm) and is one of the most versatile corrosion resistant materials available, with widespread use in applications such as chemical and petrochemical processing, flue gas desulfurization, pulp and paper equipment, industrial wastewater treatment, and air pollution control.
Hastelloy C-276 nickel alloy plate (UNS N10276) is a nickel-molybdenum-chromium-iron-tungsten alloy that is one of the most corrosion resistant alloys available on the market. The high molybdenum content provides resistance to localized corrosion such as pitting. The low carbon content minimizes carbide precipitation during welding, thereby maintaining resistance to intergranular corrosion in the heat affected zone of the weld joint.
Hastelloy C-276 nickel alloy plate also has good high temperature strength and moderate oxidation resistance, although the alloy will eventually form brittle high temperature precipitates.
Overview Properties
Hastelloy C-276 Nickel Alloy Plate (UNS N10276) is an austenitic nickel-molybdenum-chromium alloy with a small addition of tungsten. It is one of the premier corrosion resistant materials in the fabrication industry. Hastelloy C-276 Nickel Alloy Plate has excellent corrosion resistance in both oxidizing and reducing environments.
The high molybdenum and chromium contents, along with the addition of tungsten, give Hastelloy C-276 Nickel Alloy Plate an extremely strong resistance to chloride stress corrosion cracking, pitting, crevice corrosion, and general corrosion.
Hastelloy C-276 Nickel Alloy Plate can operate in oxidizing environments up to 1900°F (1038°C), however, the alloy lacks sufficient chromium content to operate successfully in the most oxidizing environments, such as high temperature concentrated nitric acid.
The low carbon content of Hastelloy C-276 Nickel Alloy Plate allows it to be used in the welded condition. It cannot be hardened by heat treatment, but can be hardened by cold working. The alloy has a higher work hardening rate than austenitic stainless steels and this should be considered.
Hastelloy C-276 nickel alloy plate is easily welded and can be processed using standard shop fabrication processes for austenitic stainless steels and nickel-based alloys.
