HASTELLOY C276
Supplied, Manufactured & Exported by Sailesh Metal Corporation.
Hastelloy C276 UNS N10276, Other common name Alloy C276
Hastelloy C276 is a nickel molybdenum chromium superalloy with an addition of tungsten designed to have excellent corrosion resistance in a wide range of severe environments. The high nickel and molybdenum contents make the nickel steel alloy especially resistant to pitting and crevice corrosion in reducing environments while chromium conveys resistance to oxidizing media. The low carbon content minimizes carbide precipitation during welding to maintain corrosion resistance in as-welded structures. This nickel alloy is resistant to the formation of grain boundary precipitates in the weld heat-affected zone, thus making it suitable for most chemical process applications in an as-welded condition. Although there are several variations of the Hastelloy nickel alloy, Hastelloy C276 is by far the most widely used. Alloy C276 is widely used in the most severe environments such as chemical processing, pollution control, pulp, and paper production, industrial and municipal waste treatment, and recovery of sour natural gas.
Hastelloy C276 is a nickel-chromium-molybdenum alloy with universal corrosion resistance unmatched by any other alloy. It has outstanding resistance to a wide variety of chemical process environments including ferric and cupric chlorides, hot contaminated mineral acids, solvents, chlorine and chlorine contaminated (both organic and inorganic), dry chlorine, formic and acetic acids, acetic anhydride, seawater, and brine solutions and hypochlorite and chlorine dioxide solutions. Alloy C276 also resists the formation of grain boundary precipitates in the weld heat-affected zone making it useful for most chemical processes in the as-welded condition. It has excellent resistance to pitting and stress corrosion cracking.
In What Forms Hastelloy C276 is available at Sailesh Metal Corporation?
Hastelloy C276 Fittings
Hastelloy C276 Pipes
Hastelloy C276 Flanges
Hastelloy C 276

Hastelloy C 276 Fittings

Hastelloy C 276 Pipes

Hastelloy C 276 Flanges

Hastelloy C276 Chemical Composition
Ni | Mo | Cr | Fe | W | Co | Mn | C |
---|---|---|---|---|---|---|---|
Remainder | 15.0-17.0 | 14.5-16.5 | 4.0-7.0 | 3.0-4.5 | 2.5 max | 1.0 max | .01 max |
V | P | S | Si | ||||
.35 max | .04 max | .03 max | .08 max |

Fabrication with Hastelloy C276.
Hastelloy C276 alloy can be forged, hot-upset and impact extruded. Although the alloy tends to work-harden, you can have it successfully spun, deep-drawn, press formed, or punched. All of the common methods of welding can be used, although the oxyacetylene and submerged arc processes are not recommended when the fabricated item is for use in corrosion service.
Hastelloy C276 Welding Material
Alloy C276 welding products are used as matching composition filler material for welding C276 alloy wrought and cast products, for dissimilar welding applications including other nickel-chromium-molybdenum alloys and stainless steels, and for weld overlay or cladding of steels.