General Description

Hastelloy C276 alloy is a nickel-molybdenum-chromium wrought alloy which has exceptional resistance to many of the most severe media. Hastelloy C276 is an improved version of Hastelloy C and has improved fabricability.

Alloy C276 has exceptional resistance to many of the most severe media encountered in chemical processing, including reducing and oxidizing acids, highly oxidizing neutral and acid chlorides, solvents, formic and acetic acids, acetic anhydride, wet chlorine gas, hypochlorites, and chlorine solutions. It has excellent resistance to phosphoric acid. Alloy C276 also resists sulfide stress cracking and stresscorrosion cracking in sour gas environments containing hydrogen sulfide, carbon dioxide, and chlorides.

Hastelloy C276 is used in flue gas desulfurization systems because of its excellent resistance to sulfur compounds and chloride ions encountered in most scrubbers. Alloy C276 has excellent resistance to pitting and to stress corrosion cracking. It is also one of the few materials that withstand the corrosive effects of wet chlorine gas, hypochlorite and chlorine dioxide.

Chemical Composition

Grade Ni% Cr% Mo% Fe% C% Mn% Si% Co% W% V% S% P%
Hastelloy C276 Bal. 15.0-16.5 15.0-17.0 4.0-7.0 Max 0.01 Max 1.0 Max 0.08 Max 2.5 3.0-4.5 0.1-0.3 Max 0.01 Max 0.015

Specifications

Grade UNS Werkstoff Nr.
Hastelloy C276 N10276 2.4819

Physical Properties

Grade Density Melting Point
Hastelloy C276 8.3g/cm3 1260°C-1355°C

Mechanical Properties

Hastelloy C276 Tensile Strength Yield Strength RP0.2% Elongation
Solution Treatment 690 N/mm² 283 N/mm² 40%

Our Production Standard

  Bar Forging Parts Welded Tube Seamless Tube Sheet/Strip Wire
ASTM ASTM B574 ASTM B564 ASTM B619/B626 ASTM B622 ASTM B575  

Welding of Hastelloy C276

All of the common methods of welding can be used to weld Hastelloy C276.

Recommend filler wire regarding welding is: ERNiCrMo-4.

Size Range

Hastelloy C276 wire, bar, rod, forging, plate, sheet, tube, fastener and other standard forms are available.

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