UNS NO8904, commonly known as 904L, is a low carbon high alloy austenitic stainless steel which is widely used in applications where the corrosion properties of AISI 316L and AISI 317L are not adequate. 904L provides good chloride stress corrosion cracking resistance, pitting resistance, and general corrosion resistance superior to 316L and 317L molybdenum enhanced stainless steels.