Description and Technical Parameter:Outer diameter ERWLSAWSSAW1 ~ 24 inch(33.4 ~ 660 mm)12 ~ 80 inch(323.8 ~ 2,000 mm)8 ~ 128 inch(219.1 ~ 3,200 mm)Wall thickness2.5 ~ 22 mm4.5 ~ 100 mm4 ~ 30 mmLength5.8 ~ 12.0 m or upon customers' requirementsStandardGB/T 3091, GB/T 13793, ASTM A252, ASTM A53, ASTM A500, EN 10210, EN 10219, API 5L, DIN 1626/1615, DIN 17120, etc.GradeSS400, Q235, Q345, Q460, ...