Description
SSAW/SAW STEEL PIPES
SSAW steel pipes or spiral submerged-arc welded steel pipes are used for the transmission of water, 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 Water
API 5L Line Pipe
ASTM A252 WELDED AND SEAMLESS STEEL PIPE PILES
ASTM A53 Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
DIN 2458 WELDED STEEL PIPES AND TUBES
DIN 30670 Polyethylen coatings of steel pipes and fittings
EN10217 Welded steel tubes for pressure purposes. Technical delivery conditions. Non-alloy steel tubes with specified room temperature properties
IS : 1978 Steel tubes for use in transportation of oil; gas & Petroleum products
Coating Standard:
ISO 21809 Petroleum and natural gas industries -- External coatings for buried or submerged pipelines used in pipeline transportation systems
SY/T5037 Spiral submerged arc-welded steel pipe for pipelines for low pressure field fluid service
SY/T 5040 Spiral submerged arc-welded steel pipe piles
Steel Grade:
S235,S235JR, S235 G2H, S275, S275JR, S355JRH, S355J2H, St12, St13, St14, St33, St37, St44, ST52
ASTM A 53: Gr. A, Gr B, Gr C, Gr.D
API 5L: A, B, X42, X46, X52, X56, X60, X65 X70
GB/T9711: L175, L210, L245, L290, L320, L360, L290, L320, L360, L390, L415, L450, L485, L555
Size:
Outer Diameter: 219.1mm - 3429mm (8" - 135")
Wall Thickness: 5mm - 25mm
End: plain or beveled
Manufacturing 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
