Welded Pipe,Welded Steel Pipe

3 125

 Carbon Welded steel pipe

1.thickness :4-20mm


3.length:as customers' requriement

Welded pipe



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.


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)
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:  
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
EN10217 Welded steel tubes for pressure purposes. Technical delivery conditions. Non-alloy steel tubes with specified room temperature properties 
API 5L Line Pipe

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  

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

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

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

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



Related post


  1. OCTG,OCTG pipe,OCTG steel pipe
    OCTG,OCTG pipe,OCTG steel pipe 1331082361 -  Reply / Edit

    OCTG,OCTG pipe,OCTG steel pipe are mainly used in the drilling and transportation for oil or gas . It includs petroleum drill pipe, petroleum casing pipe and pumping pipe for oil. Petroleum drill pipes are mainly used in the connecting drill.

  1. SMLS steel pipe
    SMLS steel pipe 1331297458 -  Reply / Edit

    SMLS steel pipe,Seamless steel pipe,API ASTM DIN SEAMLESS STEEL PIPE 2. WALL THICKNESS SCH10 TO SCH160 .

  1. Slotted Pipe,Slotted Steel Pipes
    Slotted Pipe,Slotted Steel Pipes 1331976525 -  Reply / Edit

    Slotted Pipe,Slotted Steel Pipes,The Slotted Pipes is a kind of Industrial pipe that is widely used. Our Slotted Steel Pipes are very popular in the market for their quality. We are a leading manufacturer and among the major suppliers of slo.

  1. LSAW,LSAW pipe
    LSAW,LSAW pipe 1331086600 -  Reply / Edit

    LSAW,LSAW pipe,The manufacturing of Double Submerged Arc Welded Pipeinvolves first forming steel plates into cylindrical shapes. Then the edges of the rolled plate are formed so that V-shaped grooves are formed on the interior and exterior s.

  1. black steel pipe,welded black pipe
    black steel pipe,welded black pipe 1331105827 -  Reply / Edit

    1:Out Dimesions:1/2"-24" 2:Thickness:SCH10-SCH160 3:Standard:API 5L,API 5CT,DIN 1629/2448,DIN17175,ASTM A53,ASTM A106B,ASTM A179,ASTM A210,ASTM A335,ASTM A519,GB 5310-1995,GB 3087-1999 and so on .

  1. SCH80 seamless pipe
    SCH80 seamless pipe 1331296492 -  Reply / Edit

    API SCH 80 seamless pipe 1) standard: ASTM, JIS, DIN, GB, API 2) Grade:ASTM A106 /A53, API 5L.

Latest Comments

  • EN 10208 Seamless Steel pipes for pipeline for fluids
    EN 10208 Seamless Steel pipes for pipeline for fluids

    BS EN 10208 Seamless Steel pipes for pipeline for fluids.L450MB.

  • EN 10208 Seamless Steel pipes for pipeline for fluids
    EN 10208 Seamless Steel pipes for pipeline for fluids

    BS EN 10208 Seamless Steel pipes for pipeline for fluids.L450MB.

Get in touch

Our company covers an area of 80, 000 m2 with a total assets of 90 million Yuan. There are 360 staff members including 80 technicians in our company. .

We also establish an effective complete quality control system. In 2003, our company obtained the certificate of ISO9001 Quality System Authentification!