... 1378, ASTM A53-2007Materials: Q195, Q215, Q235, Q295, Q345, 10 #, 20#, 16Mn ect.Thickness: 1.2mm-8.0mmOut ... of ERW pipe Out diameter thicknessAvailable steel gradeInches mmtolerance mmtoleranceQ195, Q215, Q235, Q295, Q345, 10#, 20#, 16Mn etc ... -8.0+/- 12.5% Company introduction: HENGJI Steel have 12 ERW pipe production lines and 2 hot ... and many construction projects and so on. Carbon Steel ERW Pipe