904L Stainless Steel Seamless Pipe, SS 904L UNS N08904 Seamless Tubes – Ronsco

904L (N08904,, 14539) super austenitic stainless steel contains 14.0-18.0% chromium, 24.0-26.0% nickel, and 4.5% molybdenum. 904L stainless steel has good activation-passivation transformation ability, excellent corrosion resistance, good corrosion resistance in non-oxidizing acids such as sulfuric acid, acetic acid, formic acid, and phosphoric acid, and has good corrosion resistance in neutral chloride-containing media. Very good resistance to pitting corrosion, as well as good resistance to crevice corrosion and stress corrosion. 904L stainless steel pipe is suitable for various concentrations of sulfuric acid below 70℃. It is resistant to acetic acid of any concentration and temperature under normal pressure, and the corrosion resistance in the mixed acid of formic acid and acetic acid is also very good.