• API 5L Welded Line Pipe
  • API 5L Welded Line Pipe
  • API 5L Welded Line Pipe
  • API 5L Welded Line Pipe

API 5L Welded Line Pipe

Welded pipe is manufactured by rolling metal and then welding it longitudinally across its length. ERW pipes are welded longitudinally, manufactured from Strip / Coil and can be manufactured up to 24” OD. ERW pipe cold formed from a ribbon of steel pulled through a series of rollers and formed into a tube which is fused through a electric charge. It is mainly used for low/ medium pressure applications such as transportation of water / oil.

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  • Introduction
  • Specification
  • Application
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Introduction:

Welded pipe is manufactured by rolling metal and then welding it longitudinally across its length. ERW ;pipes are welded longitudinally, manufactured from Strip / Coil and can be manufactured up ;to 24” OD. ERW pipe cold formed from a ribbon of steel pulled through a series of rollers and formed into a tube which is fused through a electric charge. It is mainly used for low/ medium pressure applications such as transportation of water / oil.

Standard & Grade: ;
API 5L PSL1/PSL2, ;GR.B/X42/X46/X52/X56/X60/X65/X70

End: ;Square Ends/Plain Ends (straight cut, saw cut, torch cut), Beveled Ends, Threaded

Surface: ;Bare, Lightly Oiled, Black/Red/Yellow Painting, Zinc/Anti-corrosion Coating

Packing: ;Steel Strips bundled/In Bulk, Plastic Caps plugged, Waterproof Paper wrapped etc.

Product Welded Line Pipe
Type Cold Drawn, Hot Rolled
Length 5.8M Length, 6M Length or 12M Length or as requested
Shape: Round Shape
Surface Black/Red/Yellow ;painting;Anti-corrosion;Zinc Coating etc
Application Fluid Pipe,Boiler pipe, Structural pipe, oil/gas/water pipe etc
usage 1)Low Pressure Liquid, Water, Gas, Oil, Line Pipe 2)Construction 3)Fence, Door Pipe
End protector 1) Plastic Pipe Cap 2) Steel Socket ;


P
rocess:
1.Uncoiling -- 2. Leveling --- 3. End cutting -- 4. End shearing welding -- 5. Supercoil accumulator -- 6. Edge cutting -- 7. Ultrasonic detection -- 8. Forming -- 9. Electric induction welding -- 10.Ultrasonic detection for weld seam -- 11. Medium frequency heat treatment -- 12. Air cooling -- 13. Water cooling -- 14. Sizing -- 15. Flying cutting -- 16. Flush-out -- 17. Cropping -- 18. Fattening ;testing -- 19. Straightening -- 20. End facing and bevelling -- 21. Hydrodynamic testing -- 22. Ultrasonic detection for weld seam --- 23. Ultrasonic detection for pipe end -- 24. Visual and dimensions ;inspection -- 25.Weighting and measuring -- 26. Marking -- 27. Coating --- 28. Pipe-end protection -- 29. Bending -- 30. Shipping

Specification:

Specification: ;

OD: 219.1mm ~ 610mm

WT: 3.25mm ~ 17.5mm

LENGTH: 0.5mtr ~ 22mtr (5.8/6/11.8/12 meters, SRL, DRL)

Tolerance of Outside Diameter

Standard Out Diameter Tolerance of Pipe End Tolerance of Pipe Body
API 5L

219.1~273.1

+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

Standard Grade Out Diameter Wall Thickness
API 5L A 219.1~457 +15%, -12.5%
B 508~610 +17.5%, -12.5%
X42-X80 508~610 +19.5%, -8%

;

Chemical Analysis & Mechanical Properties

Standard Class Grade Chemical Analysis(%) Mechanical Properties(min)(Mpa)
C Mn P S TensileStrength ; ; ; ; ;Yield

Strength

API 5L PSL1 B 0.26 1.20 0.030 0.030 414 241
X42 0.26 1.30 0.030 0.030 414 290
X46 0.26 1.40 0.030 0.030 434 317
X52 0.26 1.40 0.030 0.030 455 359
X56 0.26 1.40 0.030 0.030 490 386
X60 0.26 1.40 0.030 0.030 517 414
X65 0.26 1.45 0.030 0.030 531 448
X70 0.26 1.65 0.030 0.030 565 483
PSL2 B 0.22 1.20 0.025 0.015 414 241
X42 0.22 1.30 0.025 0.015 414 290
X46 0.22 1.40 0.025 0.015 434 317
X52 0.22 1.40 0.025 0.015 455 359
X56 0.22 1.40 0.025 0.015 490 386
X60 0.22 1.40 0.025 0.015 517 414
X65 0.22 1.45 0.025 0.015 531 448
X70 0.22 1.65 0.025 0.015 565 483
X80 0.22 1.85 0.025 0.015 621 552


Application:

Welded pipe is manufactured by rolling metal and then welding it longitudinally across its length. ERW pipes are welded longitudinally, manufactured from Strip / Coil and can be manufactured up to 24” OD. ERW pipe cold formed from a ribbon of steel pulled through a series of rollers and formed into a tube which is fused through a electric charge. It is mainly used for low/ medium pressure applications such as transportation of water / oil.For low pressure fluid (water, oil, gas and other liquid ) transmission in oil and gas industry.
Application : 
For low pressure fluid (water, oil, gas and other liquid ) transmission in oil and gas industry.


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