Carbon Welded steel pipe

1.thickness :4-20mm

2.OD:219-2820mm

3.length:as customers' requriement

Welded pipe

 

 Standard:

According to API 5L Gr.B standard.

GB/TB163, GB/T8162, GB/T3087, GB/T17396;

DIN28180, DIN2448, DIN17175, DIN2460;

JIS G3444, G3445, G3454, G3456, G3461;

ASTM A106, A53, A179, A192, A252, A500;

API 5L Gr.B spec 1/2.

 Material:

According to NACE MR 0175 standard.

Q345, ST35.8, ST37, ST42, ST52, A53, A106, A179, API5L/GR.B-X42, X46, X52, X56, X60. X65. X70. X80.

 

Welded steel pipe
 
Process: Welded steel pipe
ERW (Electric Resistance Welded)
HFI (High Frequency Induction)
EFW(ELECTRIC FUSION WELDED TUBE)
LSAW (Longitudinal Submerge-arc Welded)  UO(UOE), RB(RBE), JCO(JCOE)
DSAW (Double Submerged arc welded)
SAW (Spiral Welded)
SSAW (Spiral Submerged-arc Welded)
Special Welded tubes 

Quality Standard:  
ERW HFI , EFW, LSAW, DSAW: 
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

SAW SSAW:
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
CJ/T 3022 Spiral submerged-arc welded steel pipe for municipal heat supply 
IS : 1978 Steel tubes for use in transportation of oil; gas & Petroleum products  
ASTM A252 WELDEDAND SEAMLESS STEEL PIPE PILES

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:  
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 
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

Size:
ERW, HFI, EFW:
Outer Diameter: 6mm-610mm (1/16"-24") 
Wall Thickness: 0.3mm-22mm 
Length: 0.5mtr-20mtr

LSAW, DSAW: 
Outer Diameter: 219mm-1820mm 
Wall Thickness: 5.0mm-50mm
Length: 6mtr-18mtr

SAW SSAW:
Outer Diamter: 219.1mm - 4064mm (8" - 160") 
Wall Thickness: 3.2 mm - 40mm 
Length: 6mtr-18mtr

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.

Welded steel pipe

 

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