casing-tubing-coupling
Casing Coupling,Tubing Coupling,PUP JONIT
June 26, 2016
lsaw steel pipe
LSAW steel pipe
June 26, 2016

ERW steel pipe

erw-steel-pipe

The ERW steel pipe is also known as straight joint pipe. According to the wall density, the bonded tube is categorized into typical types and thick-walled types. We can offer items with personalized wall thickness according to customers’ particular requirement with a thickness deviation of no more than 0.25 mm.

With sizes between 1/2 inch and 24 inch, our ERW steel pipes go through rigorous examinations and tests, so about make sure the welding quality, external size precision, ovality, cut lengths, pipe end quality, wall density tolerance, and packaging quality are all conforming to API5L, ASTMA53, GB/T9711.1, or GB/T3091 standards. Also, we can make the item according to the standard needed by customers. Youfa is the greatest welded steel pipe producer in China and our designed annual production capability of straight joint tubes is 3.5 million tons.

Technical Specifications
Size Range: 1/2 inch ~ 24 inch (21.3 ~ 610mm).
Wall Thickness: 0.5 ~ 16mm.
Requirement: API 5L, ASTM A53, GB/T9711.1, GB/T3091.
Steel Grade: GR.A, GR.B, X42, X46, X52, X56, X60, X65, X70.
End surface: Plain end, bevel end, thread, coupling, plastic cap.
Pipe finish: Black vanish, bare, clear oil.

erw steel pipe process

erw steel pipe process

1. Uncoiling.
2. Strip Leveling.
3. End Cutting.
4. End Shearing and Welding.
5. Accumulator.
6. Forming.
7. Induction Welding.
8. Joint Heat Treatment.
9. air/Water Cooling.
10. Seam/Body UT.
11. Straightening and sizing.
12. Cutting.
13. Visual and Dimension Inspection.
14. Hydrostatic Test.
15. End Facing and Chamfering.
16. Flattening Testing.
17. Marking.
18. Length-Measuring and Weighing.
19. Seam/End UT.
20. Coating.
21. Storage.

The ERW steel pipe is also understood as straight seam pipe. According to the wall density, the bonded tube is categorized into common types and thick-walled types. We can offer items with customized wall density according to customers’ specific requirement with a thickness discrepancy of no more than 0.25 mm.

With sizes between 1/2 inch and 24 inch, our ERW steel pipes undergo strict inspections and tests, so as to make sure the welding quality, external diameter accuracy, ovality, cut lengths, pipe end quality, wall thickness tolerance, and packaging quality are all conforming to API5L, ASTMA53, GB/T9711.1, or GB/T3091 requirements. Youfa is the greatest welded steel pipe maker in China and our designed yearly production capacity of straight joint tubes is 3.5 million tons.

SpecificationsRange
Out Diameter1/8 inch to 24 inch
Wall Thicknessmax 26.5mm
Length3.0m-18m

Tolerance of Outside Diameter

StandardOut DiameterTolerance of Pipe EndTolerance of Pipe Body
API 5L219.1~273.1+1.6mm, -0.4mm±0.75%
274.0~320+2.4mm, -0.8mm±0.75%
323.9~457+2.4mm, -0.8mm±0.75%
508+2.4mm, -0.8mm±0.75%
559~610+2.4mm, -0.8mm±0.75%

Tolerance of Wall Thickness

StandardGradeOut DiameterWall Thickness
API 5LA219.1~457+15%, -12.5%
B508~610+17.5%, -12.5%
X42-X80508~610+19.5%, -8%

Chemical Analysis and Mechanical Properties

StandardClassGradeChemical Analysis(%)Mechanical Properties(min)(Mpa)
CMnPSTensile StrengthYield Strength
API 5LPSL1B0.261.200.0300.030414241
X420.261.300.0300.030414290
X460.261.400.0300.030434317
X520.261.400.0300.030455359
X560.261.400.0300.030490386
X600.261.400.0300.030517414
X650.261.450.0300.030531448
X700.261.650.0300.030565483
PSL2B0.221.200.0250.015414241
X420.221.300.0250.015414290
X460.221.400.0250.015434317
X520.221.400.0250.015455359
X560.221.400.0250.015490386
X600.221.400.0250.015517414
X650.221.450.0250.015531448
X700.221.650.0250.015565483
X800.221.850.0250.015621552

 

 

2 Comments

  1. Exactly what is the difference between erw pipeline as well as seamelss pipes?

    • abtersteel says:

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      brand new things the proper below! Best of luck for the next!

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