API 5L X46 Spiral Steel Pipe

 

API 5L X46 spiral welded pipe is produced through hot rolling, cold drawing, and hot expansion methods. It is primarily used in the transportation of petroleum, natural gas, and in the chemical and power industries. The minimum yield strength of the API 5L X46 spiral welded pipe is 320 MPa, with a maximum of 525 MPa. The minimum tensile strength is 435 MPa, with a maximum of 655 MPa, and the yield ratio is 0.93.

API 5L X46 Spiral Welded Steel Pipe Specification 

Type	SSAW Pipes (Spiral Submerged Arc Welded Pipes)
Outer Diameter Size	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.
Pipe Ends	Plain Ends / Beveled Ends / Coupling
Surface Coating	Epoxy Coating / Colour Paint Coating / 3LPE Coating.
Packaging	Loose / Bundle / Wooden Pallet / Wooden Box / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector

API 5L X46 Spiral Welded Tube 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

API 5L X46 spiral welded pipe undergoes full-body ultrasonic flaw detection.

Ultrasonic flaw detection for the full body of welded pipes is mainly divided into direct contact method and immersion method.

1. Direct Contact Method

The ultrasonic probe and the detection surface of the test piece have a very thin layer of coupling agent between them, so they can be considered to be in direct contact. The direct contact method is convenient to operate, produces simpler inspection images, is easy to interpret, and has high sensitivity for detecting defects, making it the most commonly used method in practical inspections. However, this method requires a high precision of the detection surface of the test piece.

2. Immersion Method

The immersion method involves submerging both the ultrasonic probe and the workpiece in a liquid, which acts as the coupling agent. The coupling agent can be either oil or water. The immersion method is further divided into full immersion and partial immersion. This method is suitable for test pieces with rough surfaces, as it minimizes probe wear, provides stable coupling, yields consistent detection results, and facilitates automated inspections. However, in the immersion method, the propagation attenuation of the sound wave in the pipe wall is significant. A good solution to this issue is to use the water film method instead of the water immersion method for acoustic coupling.

 

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