Stainless steel square bar 304 is A Kind Of Alloy Steel Material With High Resistance To Corrosion Resistance And High Creep Strength.Applicable Scope Pipeline, Heat Exchanger, Food Industry, Chemical Industry, Etc. Product Composition: C0.07 Si 1.0 Mn 2.0 Cr ï¼?17.0ï½?19.0 Ni ï¼?8.0ï½?11.0 S 0.03 P 0.035 Tensile strength (Mpa) 620 MIN. Yield strength (Mpa) 310 MIN. Elongation (%) 30 MIN. Area reduction (%) 40 MIN.