... spiral steel pipe Q235 standard:API,ASTM,ASME,ANSI,JIS,DIN,BS,GB,ISO material:API 5L, A53,A106,A333 GR6,Q235,Q345 sell spiral ... use in transportation of oil; gas & Petroleum productsASTM A252 WELDEDAND SEAMLESS STEEL PIPE PILES BS534, BS 3601 DIN 1626, DIN 2460,TS1997 ... , L485, L555ASTM A252: Gr.1 Gr.2 Gr.3 Size range:Outer Diamter: 219.1mm - 4064mm (8" - 160")Wall Thickness: 3.2 ...