INCO alloy C-276 is know for its outstanding corrosion resistance in a wide range of severe media. The high nickel and molybdenum contents provide good corrosion resistance in reducing environments while chromium imparts resistance to oxidizing media. The molybdenum also aids resistance to localized corrosion such as pitting. The low carbon content minimizes carbide precipitation during welding to maintain resistance to corrosion (intergranular attack) in heat-affected zones of welded joints.
INCO alloy C-276 is widely used in the severest environments encountered in chemical processing, pollution control, pulp and paper production, industrial and municipal waste treatment, and recovery of "sour" natural gas. Applications in air-pollution include stack liners, ducts, dampers, scrubbers, stack-gas reheaters, fans and fan housings. In chemical processing, the alloy is used for numerous components including heat exchangers, reaction vessels, evaporators, and transfer piping. In sour gas wells (those containing hydrogen sulfide), INCO alloy C-276 delivers a high level of performance in various downhole and surface components including tubing, coupling, and subsurface safety valves.