A36 ERW Weld Steel Pipe

A36 ERW Weld Steel Pipe is a carbon steel pipe widely used in construction, oil, and gas industries due to its strength and reliability. It is known for its uniform wall thickness and smooth finish. The ERW process involves using electrical currents to heat and fuse the edges of the steel, creating a strong and seamless weld. This method ensures dimensional accuracy and high performance properties, making it suitable for structural applications and fluid transportation.

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Product Introduction

In addition to ultrasonic testing, several other non-destructive testing (NDT) methods can be employed to evaluate the welding quality of A36 ERW Weld Steel Pipe:

Visual Inspection: This involves a direct visual examination of the weld and the surrounding area for any visible defects or irregularities.

Radiographic Testing (RT): This method uses X-rays or gamma rays to penetrate the material and reveal internal flaws such as cracks, inclusions, or porosity within the weld area.

Magnetic Particle Inspection (MPI): Particularly useful for ferromagnetic materials, this technique applies a magnetic field to the pipe, and any surface or near-surface defects disrupt the magnetic field, causing magnetic particles to gather at the defect sites.

Penetrant Testing (PT): Also known as dye penetrant testing, this method involves applying a fluorescent or visible dye to the surface of the weld. Any cracks or surface-breaking defects will draw the penetrant in, and the excess penetrant is removed from the surface. Then, a developer is applied, which causes the penetrant in the defects to show up, making the defects visible under ultraviolet light or to the naked eye.

Leak Testing: This can be performed by pressurizing the pipe with a gas or liquid and monitoring for leaks, which can indicate weld imperfections.

Metallographic Examination: This involves preparing a cross-section of the weld and examining it under a microscope to evaluate the microstructure, weld penetration, and the presence of defects.

Size	Thickness 0.5-40 mm
	OD: 12-2620 mm
	Length:common length 5.8m,6m,11.8m,12m or as request

product-339-255 product-348-254

FAQ

Q: How is your Payment Term?

A:One is 30% deposit by TT before production and 70% balance against copy of B/L; the other is Irrevocable L/C 100% at sight.

Q: Can we visit your factory?

A: Warmly welcome. Once we have your schedule, we will arrange the professional sales team to follow up your case.

Q: Can you provide sample?

A: Yes, for regular sizes sample is free but buyer need to pay freight cost.

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