ERW pipe,ERW steel pipe,steel ERW pipe

　　Process:

　　ERW (Electric Resistance Welded)

　　HFI (High Frequency Induction)

　　EFW(ELECTRIC FUSION WELDED TUBE)

　　Quality Standard:

　　ERW HFI , EFW,:

　　GB/T3091 Welded steel pipe for low pressure liquid delivery

　　GB/T9711 Petroleum and natural gas industries--Steel pipe for pipelines

　　IS: 3589 Steel tubes for water and sewage

　　IS : 1978-1982? Steel tubes for use in transportation of oil; gas & Petroleum products?

　　BS: 1387 Steel Tubes for use for Water, Gas, Air and Steam

　　ASTM A53 Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless

　　DIN 2458 WELDED STEEL PIPES AND TUBES

　　EN10217 Welded steel tubes for pressure purposes. Technical delivery conditions. Non-alloy steel tubes with specified room temperature properties

　　API 5L Line Pipe

　　Coating Standard:

　　ANSI/AWWA C104/A21.4 American National Standard for Cement-Mortar Lining for Ductile-Iron Pipe and Fittings for Water

　　ISO 21809 Petroleum and natural gas industries -- External coatings for buried or submerged pipelines used in pipeline transportation systems

　　DIN 30670 Polyethylen coatings of steel pipes and fittings

　　Steel Grade:

　　BS:1387, EN10217:S185, 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

　　GB/T3091, SY/T5037, SY/T 5040,CJ/T 3022:Q195, Q215, Q235, Q275, Q295, Q345, 08F, 08, 08AL, 08F, 10F, 10, HG5, DF08 SPHC, M8

　　Size:

　　ERW, HFI, EFW:

　　Outer Diameter: 6mm-610mm (1/16"-24")

　　Wall Thickness: 0.3mm-22mm

　　Length: 0.5mtr-20mtr

　　End:square ends (straight cut, saw cut, and torch cut). or beveled for welding, beveled,

　　Surface: Lightly oiled, Hot dip galvanized, Electro galvanized, Black, Bare, Varnish coating/Anti rust oil, Protective Coatings (Coal Tar Epoxy,? Fusion Bond Epoxy, 3-layers PE)

　　Packing:Plastic plugs in both ends, Hexagonal bundles of max. 2,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips, Plastic caps.

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

　　Mill Test Certificate:EN 10204/3.1B

　　Third party inspection:SGS, BV, Lloyds etc.

　　We have adopted advanced production equipment and technologies to manufacture our seamless steel , erw pipe,spiral steel,galvanized pipe ,oil casing,which can not only improve product quality, but also save raw materials