1) Standard: ASTM A252

2) Grade: Gr.1/Gr.2/Gr.3

3) Out diameter: 406.4mm – 1820mm

4) Wall thickness: 6mm – 50mm

5) Length: Random length, Fixed length, SRL, DRL

6) Equipment: Most advanced submerged Arc Welded.

7) Test: Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Blow Test, Impact Test, DWT test),Exterior Size Inspection, Hydrostatic Test, X-ray Test, UT test.

8) Packing: Black coating, bitumen coating, FBE, 3PE, 3PP, thermal insulation coated. Fiber glass coated, Epoxy.

9) Application: Pilling, seashore, ground construction.

10) Assurance: API/ASTM/ISO quality system, SGS, DNV, BV, Moody third party inspection welcomed.

11) Documents: All the related documents will be issued timely.

12) Package: Bundle, woven bags, plastic rain cloth, as per customer's requirement.

13) The steel shall be made by one or more of the following process: open-hearth, basic-oxygen, or electric-furnace.

14) Chemical Composition: The steel shall contain no more than 0.050% phosphorous.

15) Mechanical properties: