... stainless steel round bars, hexagon bars, square bars, flat steel, angle steel and other stainless steel products.Materials: 303,304 ... 420 F.Standard: AISI, ASTM, GB, JIS, BS, DINUse: machine manufacture, vehicles, ships, construction, chemical industry, food industry, household ... .Please feel free to contact us for more information, if you are interested in our products. 420F stainless steel round bar