904L is designed to achieve moderate to high corrosion resistance. This is due to the high amount of molybdenum, chromium and nickel content. The resistance properties of grade 904L stainless steel pipes include good resistance to stress corrosion cracking, and pitting and crevice corrosion, as well as inter granular corrosion. The “L” in 904L stands for low carbon, i.e., only 0.03 percent or less. Grade 904L is also non-magnetic in all conditions, and has excellent machinability and weldability. Moreover, the austenitic structure gives it excellent toughness, even at cryogenic temperatures.