spiral seam large diameter double submerged arc welding steel tube/pipe

spiral seam large diameter double submerged arc welding steel tube/pipe Product Discription   Process: Spiral Submerged- Arc Welded Steel Pipe   Usage: Used for low pressure pquid transportation, such as water, gas, and oil; construction and pipng   Standard: API 5L, ASTM A252, EN10217-1,2,5, EN10219-1, BS, JIS, IS   Certificate: EN10217, EN10219, API 5L PSL1/ PSL2, API 5CT   Out Diameter: 219.1 mm – 3048mm (8"-120")   Wall Thickness: 4mm - 30mm   Length: 3 – 70 M   Steel Grade: API 5L: GR A, GR B, X42, X46, X56, X60, X65, X70 ASTM A252 GR 1, GR 2, GR 3 BS 4360: Grade 43, Grade 50 EN: S275JR, S275J0H, S275J2H, S355JRH, S355J0H, S355J2H   Surface: Fusion bond Epoxy coating, Coal Tar Epoxy, 3PE, Vanish Coating, Bitumen Coating, Black Oil coating as per customer’s requirement   Test: Chemical Component Analysis, Mechanical Properties (ptimate tensile strength, Yield strength, Elongation), Metallographic Test, Technical Properties (Bending Test, Charp-v Impact Test, Hydrostatic Test, X-ray Test, ptrasonic Test   Mill Test Certificate: EN 10204/3.1B   Spiral Welded Steel Pipe Producing Process  Spiral Welded Steel Pipe   Project Pictures     Equipments   Spiral Welded Steel Pipe  Inspection Certificates   Welcome to contact us !