... cracking. The nickel, in conjunction with the molybdenum and copper, also gives outstanding resistance to reducing environments such ... resists general corrosion, pitting, crevice corrosion, intergranular corrosion, and stress-corrosion cracking. Some environments in which Alloy 825 is ... phosphoric acid, sulfurcontaining flue gases, sour gas and oil wells, and sea water 2.Applications of ALLOY 825 (UNS ...