API 5L X42 SSAW Pipe

The API 5L X42 spiral welded pipe is produced from wide and thick steel plates with a thickness ranging from 6mm to 50mm through hot rolling, normalizing, normalized rolling, and thermomechanical rolling methods. There are two quality specifications: API 5L X42 PSL1 welded pipe and API 5L X42 PSL2 welded pipe.

API 5L X42 Spiral Welded Steel Pipe Specification

Outer Diameter	12" NB to 150" NB (Nominal Bore Size)
Wall Thickness	Schedule 20 to Schedule XXS (Heavier On Request) Up to 250 mm Thickness
Length	5 to 7 Meters, 09 to 13 Meters, Single Random Length, Double Random Length And Customize Size.
Independence Inspection	Chemical Test, Mechanical Test.
Application	Line Pipe for Oil and Gas Industry, etc
Third Party Inspection	SGS, BV, INTERNET, etc.
Packing	in Bundles or as Your Requirement.
Payment Terms	T/T, L/C, West Union, Paypal, O/A
Delivery Time	7-25 Days after Receiving the Deposit

API 5L X42 Spiral Welded Pipe

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

API 5L X42 Spiral Welded Pipe Production Process

1. Steel Plate Inspection: Before processing, steel plates undergo ultrasonic testing to effectively prevent unqualified plates from entering the production line.

2. Cutting: The edges on both sides of the steel plate are milled using an edge milling machine. As the pipe has varying diameters at each end, the steel plate is cut so that one end is wide and the other is narrow, achieving the required plate width, edge parallelism, and bevel shape.

3. Pre-bending: The edges of the steel plate are pre-bent using a pre-bending machine to meet curvature requirements. For thicker plates, a press machine can be used for pre-bending.

4. Forming: On the forming machine, the pre-bent steel plate is initially rolled multiple times into a "J" shape, then the other half of the plate is similarly rolled into a "C" shape, and finally, an open "O" shape is formed.

5. Pre-welding: The formed spiral steel pipe pile is welded using gas-shielded welding.

6. Internal Welding: Longitudinal multi-wire submerged arc welding (up to four wires) is used to weld the inside of the large-diameter welded pipe.

7. External Welding: Longitudinal multi-wire submerged arc welding is used to weld the outside of the spiral steel pipe pile.

8. Trimming: The entire welded steel pipe is trimmed to ensure precise dimensions required by the customer and to improve the distribution of internal stress within the pipe.

9. Inspection: Based on customer requirements, the spiral steel pipe pile undergoes ultrasonic testing or X-ray inspection, hydrostatic testing, and can also receive anti-corrosion treatment and coating.

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