DIN 1.4539 / UNS N08904 904L Super Austenitic Stainless Steel Tube
Polish Welded Pipe
Thickness SCH10 - SCH160
polished / without polished
6 meter or 5.8 meter or according customer require.
Material summary and usage
904L steel is high nickel and molybdenum austenitic stainless acid resistant steel. As it contains high contents of chrome, molybdenum and copper, it has excellent activation and passivation ability, with low corrosion rate in the passivation area (because of high chrome). Meanwhile, it has good pitting corrosion and crevice corrosion resistant performance (because of high chrome and molybdenum) and good stress corrosion resistant performance (because of high nickel). It has good corrosion resistant in non-oxidizing acids such as sulfuric acid, formic acid and phosphoric, and has good pitting corrosion resistance in neutral solution containing chlorides.
Some of the major applications of grade 904L stainless steels include:
Wiring in electrostatic precipitators
Oil refinery components
Seawater cooling devices
Gas scrubbing plants
Pulp and paper processing industries
Acetic, phosphoric and sulphuric acid processing plants