... API 5L, A53,A106,A333 GR6,Q235,Q345 LSAW tube SSAW (Spiral Submerged-arc Welded) Quality standard: API ... ends of the pipe and then jointed with bolts. Test:Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength ... Elongation), Technical Properties ( Bending Test, Blow Test, Impact Test), ExteriorSize Inspection, Hydrostatic Test, X-ray Test.Mill Test Certificate:EN 10204/3.1B Third ...