What is C276 material?
Overview
HASTELLOY C276 is a nickel-chromium-molybdenum wrought alloy that is considered to be the most widely used corrosion resistant alloy available. The alloy inhibits the formation of grain boundary precipitates in the weld heat affected zone, making it suitable for most chemical process applications in the welded condition. C-276 alloy also has excellent resistance to pitting, stress corrosion cracking, and corrosion resistance in oxidizing environments up to 1900°F (754°C). C-276 alloy has excellent resistance to a wide range of chemical environments.
Features
HASTELLOY C276 is one of the few alloys that can withstand wet chloride gases, hypochlorites, and chlorine dioxide solutions.
HASTELLOY C276 has excellent resistance to strong oxidizing salt solutions such as ferric chloride and cupric chloride.
HASTELLOY C276 is not susceptible to grain boundary precipitation in the welded condition, making it suitable for a variety of chemical process applications.
Applications
Digesters and bleaching plants in the paper industry.
Components exposed to acid gases.
Flue gas desulfurization plant equipment.
Evaporators, heat exchangers, filters and mixers used in sulfuric acid environments.
Sulfuric acid reactors.
Organic chloride process equipment.
Process equipment using halides or acid catalysts.
Some typical applications for HASTELLOY C276 include chemical and petrochemical organic chloride processes and equipment components in processes using halides or acid catalysts. Other industry applications include pulp and paper (digesters and bleaching areas), scrubbers and piping for flue gas desulfurization, pharmaceutical and food processing equipment.
HASTELLOY C-276 is a nickel-chromium-molybdenum alloy that has a wide range of corrosion resistance unmatched by other alloys. It has excellent resistance to a wide range of chemical process environments, including ferric and cupric chlorides, thermally contaminated inorganic acids, solvents, chlorine gas and chlorine contamination (organic and inorganic), dry chlorine, formic and acetic acids, acetic anhydride, seawater and brine solutions, and hypochlorite and chlorine dioxide solutions. C276 alloy also inhibits the formation of grain boundary precipitates in the weld heat affected zone, making it usable in most chemistries in the welded condition. It also has excellent resistance to pitting and stress corrosion cracking.
HASTELLOY C276 plate in 0.044-inch thickness, in the 2050°F (1040°C) heat treated condition, rapidly quenched, has an average Olsen Cup depth of 0.48 inches. C-276 alloy can be successfully fabricated by a variety of methods. The alloy is susceptible to work hardening, but it is readily hot and cold formed if properly processed. We provide complete information on welding, machining, and forming.
