... bar standard: GB etc material: q235, q345,ss400, 45# etc size: 5.5mm~300mm length: as your requirements Hot ... Rolled Round BarDescription Steel GradeQ195,Q235,Q345,45# etcStandardASTM, GB, JIS etcDimensions5.5mm--250mmPlace of OriginTianjin. China ... .556324.5220298253.856526230326264.176828.5240355274.497030.2250385Chemical Analysis for 45# GradeC%Mn%Si%PS45#0.42~0.480.6 ...