Hastelloy c22 pipes manufactured at Duplex Supply Inc. contain high levels of nickel and molybdenum. The high levels of nickel and molybdenum make the pipes especially resistant to pitting and crevice corrosion in reducing environments. Hastelloy c22 pipes manufactured at Duplex Supply Inc. also contain chromium and iron which are effective and powerful chemicals in the resistance of oxidizing media. Hastelloy c22 pipes are one of the most versatile corrosion resistant pipes available, they exhibit outstanding resistance in a variety of environments including those consisting of ferric, hot contaminated organic and non-organic media, chlorine, formic and acetic acids. It is also one of the few pipes available which withstand the corrosive effects of wet chlorine gas, hypochlorite, and chlorine dioxide.
Hastelloy C22, also known as alloy C22, is a versatile austenitic nickel-chromium-molybdenum-tungsten alloy with enhanced resistance to pitting, crevice corrosion and stress corrosion cracking. The high chromium content provides good resistance to oxidizing media while the molybdenum and tungsten content give good resistance to reducing media. This nickel steel alloy also has excellent resistance to oxidizing aqueous media including wet chlorine and mixtures containing nitric acid or oxidizing acids with chlorine ions