Austenitic stainless steel X04Cr19Ni9 (numerical symbol 304 S1) to IS 6911:1992 (reaffirmed 1998), made as plate, sheet and strip and normally supplied solution annealed and descaled. Minimum tensile strength annealed is 400 MPa with 0.2% proof stress of 200 MPa.
Applications
Used in food equipment, chemical processing units, kitchenware, tanks, piping, and architectural applications.