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Spiral Steel Pipe

1. Type: Spiral Welded Pipe, Spiral Steel Pipe, SSAW Pipe, SAWH Pipe
2. Application: Oil, Gas, Water, Construction, Structure parts, etc.
3. OD: 219-3500mm, WT: 6-25mm, L: 6-18mtr, SRL, DRL
4. Standard & Grade: ASTM A53 Grade A/B/C, AWWA C200
5. End: Beveled, Square, LTC/STC/BTC/VAM Connection
6. Delivery:Within 10-30 days and depends on your order quantity
7. Payment:TT, LC , OA , D/P
8. Packing:Bundled/In Bulk, Plastic Caps Plugged, Waterproof Paper Wrapped
Availability:
Spiral Steel Pipe
Spiral Steel Pipe
Spiral Steel Pipe
Spiral Steel Pipe
Spiral Steel Pipe
Spiral Steel Pipe


What is the Spiral Welded Pipe

Spiral welded pipe(SSAW pipe, also called HSAW pipe). The pipe is formed by spiral submerged arc welding technology. Spiral welded pipes are formed using narrower plates or hot rolled coils, which lowers their production costs significantly. The welding line shape like a helix. The spiral welding process permits the production of large-diameter pipes suitable for transporting large volumes of oil and gas. Some SSAW pipes were historically limited to low-pressure applications.


Spiral-welded pipe is manufactured from coils of steel that are unwound and flattened. The flattened strip is formed by right-angle rollers into a cylinder of the desired diameter.


The weld is welded under powder coating. This process is also known as Submerged Arc Welding (SAW). At the end of the spiral, a new spiral is welded to the back edge of the pipe, creating a cross seam. The pipe is cut to length and the ends are beveled if necessary.


Spiral pipe manufacturing has come a long way in recent decades. Cold bending of a spiral pipe was very difficult in the past, but thanks to better manufacturing processes, it can be bent even easier than a steel pipe with a straight weld seam.


Spiral pipes also have close tolerances on the outside diameter and are to weld as ordinary steel pipes. Spiral pipes, like ordinary pipes, can be coated and lined without difficulty.


This type of pipe is used in large pipeline systems around the world, and thanks to the spiral structure of the pipe, spiral pipe also has the most favorable properties for stopping a running crack. Because of these advantages, spiral welded pipe is used in a wide range of applications.



Size chart of Spiral Welded Pipe

Outer Diameter
(mm)

Wall Thickness (mm)

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

219.1

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273

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323.9

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325

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355.6

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377

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406.4

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426

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457

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478

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508

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529

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630

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711

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720

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813


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820


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920



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1020



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1220



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1420




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1620





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1820






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2020







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2220








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2500








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2540









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3500










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The manufacturing process of spiral welded pipe


products_12


Standard of spiral welded pipe

Steel Pipe for Fluid Service

GB/T 14291

Welded pipe for mine fluid service


GB/T 3091

Welded pipe for low-pressure fluid service


SY/T 5037

Spirally submerged arc welded steel pipe for pipelines for low-pressure fluid service


ASTM A53

Black and hot-dipped galvanized welded and seamless steel pipe


BS EN10217-2

Welded steel tubes for pressure purposes - delivery technical conditions - part2: Electric welded non- alloy and alloy steel tubes with specified elevated temperature properties


BS EN10217-5

Welded steel tubes for pressure purposes - delivery technical conditions - part5: submerged arc welded non-alloy and alloy steel tubes with specified elevated temperature properties

Steel Pipe for Ordinary Structure

GB/T 13793

Longitudinally electric resistance welded steel pipe


SY/T 5040

Spirally submerged arc welded steel pipe piles


ASTM A252

Welded and seamless steel pipe piles


BS EN10219-1

Cold-formed welded structural hollow sections of non-alloy and fine grain steels - part1: Technical delivery conditions


BS EN10219-2

Cold-formed welded structural hollow sections of non-alloy and fine grain steels - part2: tolerances dimensions and sectional properties

Line Pipe

GB/T 9711.1

Steel pipe for the pipeline transportation system of petroleum and natural gas industries(Class A steel pipe)


GB/T 9711.2

Steel pipe for the pipeline transportation system of petroleum and natural gas industries(Class B steel pipe)


API 5L PSL1/2

Line pipe

Casing

API 5CT/ ISO 11960 PSL1

Steel pipe for use as casing or tubing for wells of petroleum and natural gas industries



Application of spiral welded pipe

  • Water supply engineering

  • Petrochemical industry

  • Chemical industry

  • Electric power industry

  • Agricultural irrigation

  • Urban construction. 

  • Water supply and drainage. 

  • Gas transport

  • Structure construction


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