... oil; gas & Petroleum productsASTM A252 WELDEDAND SEAMLESS STEEL PIPE PILES BS534, BS 3601 DIN 1626, DIN 2460,TS1997 ... welded to the ends of the pipe and then jointed with bolts. Test:Chemical Component Analysis, Mechanical Properties ( ... Elongation), Technical Properties ( Bending Test, Blow Test, Impact Test), ExteriorSize Inspection, Hydrostatic Test, X-ray Test.Mill Test Certificate:EN 10204/3.1B ...