The corrosion resistance of alloy ub6 ranges from moderate to high, depending on the circumstances of the manufacturing process. High chromium and nickel content, combined with molybdenum and copper additions, guarantee decent to excellent resistance to corrosion. 904L outperforms 316L and 317L molybdenum-enhanced stainless steels because to its superior resistance to chloride stress corrosion cracking, pitting, and general corrosion due to its highly alloyed chemistry (25% nickel and 4.50% molybdenum). Alloy ub6 was initially developed to withstand environments like those exposed to diluted sulfuric acid. It can withstand the heat of phosphoric acid and other inorganic acids, and it is resistant to many organic acids as well. It is easy to weld and fabricate Alloy ub6 using standard shop fabrication methods.