Hot rolled steel round bar Q345B, 304,316,20Cr,40Cr,20CrMo,35CrMo,42CrMo Wide supply range with qualified product Hot rolled ... steel round bar Q345B, 304,316,20Cr,40Cr,20CrMo ... , DIN, ASTM, ASME, ISO5.Material quality: steel round bar comes along with Mill Test Certiicate, includes chemical composition and technical properties ...