Seamless Steel Pipe 1. Outer Diameter: Hot finish: 400 ?1020mm,?Cold drawn: 13.72 ?457mm 2. Wall Thickness: Hot finish: 16 ?200mm,?Cold drawn: 1.7 ?22.5mm 3. Standard: ASTM A106, ASTM A53, ASTM A179, API5L GR.B, X42, X46, X52, 4. Length: Random Length, Fixed Length, SRL, DRL 5. Heat treatment: Annealed, Normalized 6. Surface: Zinc coating, black phosphated, oiled 7. Packing: as per customer’s requests 8. Application: Mechanical tubing, oil casing, low pressure boiler etc. Pls contact me via summer(at)hnssd(dot)com / +86 0731 88678503 +86 15974114261