ERW Welded Steel Pipe 1.Technique: ERW 2.WT: 0.4-10mm ... , API5L Welded Steel Pipe 1. Out Diameter: 25.4mm - 304.8mm2. Thickness: 2.5mm -26mm3. Steel Grade: Q195-Q345 Standard: GB ... STEEL PIPE PILES BS534, BS 3601 DIN 1626, DIN 2460,TS1997, UNI 6363, AWWA C-200 Steel Grade:Q195, Q215, Q235, Q275, Q295, Q345 ... and lining: Outside coating: Anti-rust oil, black painting. Epoxy Coating according to AWWA C-210 ...