... carbon steel pipe 1. Grade: Q345B, API X42 - X80, L245, L555, J55, N80 2. Standard: SY/T5037-2000, GB/T Spiral weld carbon steel ... GB/T9711.1-97, API Spec 5LSpecification of SSAW Steel Pipe:1. Outside Diameter: 219~2420mm,2. Wall Thickness: 5-20mm, ... strength, Yield strength, Elongation), Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic ...