Properties And Uses of Hastelloy C-276

Hastelloy C-276 alloy is a tungsten-containing nickel-chromium-molybdenum alloy with extremely low silicon-carbon content, and is considered a universal corrosion-resistant alloy.

Corrosion Resistance

Hastelloy materials are mainly resistant to wet chlorine, various oxidizing chlorides, chloride salt solutions, sulfuric acid and oxidizing salts, and have good corrosion resistance in low temperature and medium temperature hydrochloric acid. Therefore, in the past 30 years, it has been widely used in harsh corrosive environments, such as chemical industry, petrochemical industry, flue gas desulfurization, pulp and paper, environmental protection and other industrial fields.

The Alloy Has The Following Properties:

In the state of oxidation and reduction, it has excellent corrosion resistance to most corrosive media.

Excellent resistance to pitting corrosion, crevice corrosion and stress corrosion. The higher content of Mo and Cr makes the alloy resistant to chloride ion corrosion, and the W element further improves the corrosion resistance. At the same time, Hastelloy C-276 alloy is one of the few materials that are resistant to the corrosion of wet chlorine, hypochlorite and chlorine dioxide solutions, and it is effective for high-concentration chloride salt solutions such as ferric chloride and copper chloride. Remarkable corrosion resistance. It is suitable for sulfuric acid solutions of various concentrations, and is one of the few materials that can be used in hot concentrated sulfuric acid solutions.

Mechanical Properties

Tensile strength: σb≥730Mpa,
Elongation: δ≥40%,
Hastelloy C-276 alloy hot forming is immediately annealed at 1150 ℃, and quenched with water. Cold deformation of Hastelloy C-276 alloy will increase its strength.
Hastelloy C-276 alloy and ordinary austenitic stainless steel have similar formability. However, because it is stronger than ordinary austenitic stainless steel, it will have greater stress during cold forming. In addition, this material works much faster than ordinary stainless steels, so it is necessary to take an intermediate annealing treatment during the extensive cold forming process.

Eternal Bliss Alloy Casting & Forging Co, Ltd.

Caesar

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