Sanicro 70 is an austenitic nickel-chromium-iron (NiCrFe) alloy characterized by very good resistance to carburization and nitrogen absorption and good structural stability at high temperatures. It also has good resistance to stress corrosion cracking (SCC).

Applications
Sanicro 70 has good resistance to chlorine and hydrogen chloride at high temperatures and can therefore be used in the production of chlorinated hydrocarbons, e.g. in the oxychlorination reactor and the cracking furnace in vinylchloride plants.

Sanicro 70 can also be used in wet corrosive conditions, where austenitic 18Cr/8Ni steels would be susceptible to stress corrosion cracking.