... A53-2007, API5L Galvanized Welded Steel Pipe1. Out Diameter: 25.4mm - 304.8mm2. Thickness: 2.5mm -26mm3. Steel Grade: Q195-Q345 Standard: GB/T ... A252 WELDEDAND SEAMLESS STEEL PIPE PILES BS534, BS 3601 DIN 1626, DIN 2460,TS1997, UNI 6363, AWWA C-200Steel Grade:Q195, Q215, Q235 ... , Elongation), Technical Properties ( Bending Test, Blow Test, Impact Test), Exterior Galvanized Welded Steel Pipe