Large-Diameter SSAW Steel Pipes

SSAW/SAW STEEL PIPESSSAW steel pipes or spiral submerged-arc welded steel pipes are used for the transmission of water,Website:http://www.alllandsteelpipes.com, gas, or petroleum products and many other usages. Our spiral welded steel pipes and tubes are available in wall thicknesses and diameters. We are among the leading manufacturers and suppliers of SSAW pipes and tubes in China, welcomed by customers in many countries of the world.Quality Standard:ANSI/AWWA C104/A21.4 American National Standard for Cement-Mortar Lining for Ductile-Iron Pipe and Fittings for WaterAPI 5L Line PipeASTM A252 welded steel pipeASTM A53 Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and SeamlessCJ/T 3022 Spiral submerged-arc welded steel pipe for municipal heat supplyDIN 2458 welded steel pipe and tubesDIN 30670 Polyethylen coatings of steel pipes and fittingsEN10217 Welded steel tubes for pressure purposes. Technical delivery conditions. Non-alloy steel tubes with specified room temperature propertiesIS : 1978 Steel tubes for use in transportation of oil; gas & Petroleum productsSteel Grade:BS:1387, EN10217:S185, S235,S235JR, S235 G2H, S275, S275JR, S355JRH, S355J2H, St12, St13, St14, St33, St37, St44, ST52ASTM A 53: Gr. A, Gr B, Gr C, Gr.DAPI 5L: A, B, X42, X46, X52, X56, X60, X65 X70GB/T9711: L175, L210, L245, L290, L320, L360, L290, L320, L360, L390, L415, L450, L485, L555GB/T3091, SY/T5037, SY/T 5040,CJ/T 3022:Q195, Q215, Q235, Q275, Q295, Q345Size:Outer Diameter: 219.1mm - 3500mm Wall Thickness: 6 mm - 28mmEnd: plain or beveledManufacturing Process: 1. Raw Material Inspection 2. Uncoiling 3. Rough Leveling 4. End Cutting and Butt Welding 5. Precision Leveling 6. Delivering 7. Forming By Inner and Outer Welding 8. Welding Slag leaning & Overall Inspection 9. Repair Welding, X-Ray Inspection, Scanning, And Re-Inspection By Manual UT 10. Chamfering 11. Hydrostatic Testing 12. Auto Length-Measuring and Weighing 13. Coating and Marking 14. Storage


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