... ,JIS 4. Carbon Steel Pipe Steel Tube 500 mm in Diameter Large Diameter Steel Pipe DN500 Steel Pipe1. Factory sell 2 ... . GB,ASTM,DIN,JIS,BS 4. Carbon steel pipeSpecifications: StandardASTM, BS, JIS, DINSteel GradeGB ... 1% WT: +12.5% / -10% Main marketAsia, India, Middle East, America, Europe GradeMechanical PropertyChemical Property (%)σsσbδ ...