Quality Inspection of Spiral Welded Steel Pipes

Release date:

2023-02-28

Author:

Source:

Category:

Steel Pipe Knowledge

Prior to shipment, spiral welded steel pipes shall undergo mechanical property testing, flattening tests, and flaring tests, and must meet the requirements specified in the relevant standards.

Before leaving the factory, spiral welded steel pipes shall undergo mechanical property testing, flattening tests, and flaring tests, and must meet the requirements specified in the relevant standards. The quality inspection methods for straight-seam steel pipes are as follows:

1. On the surface, that is, through visual inspection. Visual inspection of welded joints is a simple and widely used method, serving as an important part of final‑product inspection, primarily aimed at identifying surface defects and dimensional deviations. Typically, this is performed by naked eye observation, aided by standard templates, gauges, and magnifying tools. If surface defects are detected, there is a corresponding possibility of internal defects in the weld.

2. Physical Testing Methods: Physical testing methods rely on specific physical phenomena to perform measurements or inspections. For examining internal defects in materials or workpieces, nondestructive testing (NDT) is typically employed. Common NDT techniques include ultrasonic testing, radiographic testing, penetrant testing, and magnetic particle testing.

How to distinguish between loose rust and true rust on spiral steel pipes?

Stacking principles for spiral welded steel pipes require…

More News

■

What are the product categories offered by spiral pipe manufacturers?

—

2023-05-11