Nickel alloy seamless pipe/tubes C276(UNS N10276) ASTM B622

Corrosion Resistance

Alloy C276 nickel alloy seamless tube is one of the primary anti-corrosion materials, and it performs very well in both oxidizing and reducing environments. It can resist chloride stress corrosion cracking, pitting, crevices and general corrosion. The alloy can also resist the precipitation of carbides during welding so that it can be used in the welding state.

In chemical processing applications, the alloy has special resistance to sulfuric acid, hydrochloric acid, formic acid, acetic acid and phosphoric acid. Alloy C276 nickel alloy seamless tube performs well in environments containing acid chlorides, solvents and acetic anhydride. This alloy is one of the few grades that can withstand wet chlorine, hypochlorite and chlorine dioxide solutions.

Alloy C276 nickel alloy seamless tube has strong resistance to concentrated solutions of oxidizing salts including ferric chloride and copper chloride. It also performs well in seawater, especially under crevice conditions where other frequently used alloys such as stainless steel, alloy 400 and alloy 625 fail.

The operating conditions of the flue gas desulfurization system provide a challenging environment for corrosion-resistant materials. The scrubbing liquid and gas condensate usually contain chlorides. Facts have proved that before the occurrence of localized corrosion in these systems, the chloride content of alloy C276 nickel alloy is higher than other grades.

Alloy C276 nickel alloy seamless tube is widely used in the recovery and treatment of sour natural gas containing hydrogen sulfide, carbon dioxide and chloride. Carbon steel and alloy steel cannot withstand this corrosive environment. They will fail due to sulfide stress cracking or stress corrosion cracking. The rich chemical composition of the alloy C276 nickel alloy seamless tube makes it resistant to acidic environments even at high temperatures in deep wells.