... delivery, such as water, gas, and oil; construction and piling Standard: API 5L, API 5CT, ASTM A252, ASTM 53, EN10217, EN10219 ... , Yield strength, Elongation), Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, X-ray Test.Mill Test Certificate:EN 10204/3.1B