What are the commonly used quality inspection methods for steel pipes

In order to ensure the quality during production, we will carry out different inspection methods for pipes with different production processes. There are many methods to inspect the quality of pipes, and the physical method is the most commonly used one. Physical inspection is a method to measure or inspect some physical phenomena of steel pipes. Generally, nondestructive testing is used to check the defects of materials and workpieces. The following is a detailed explanation of the inspection methods of pipes.

ultrasonic examination

When ultrasonic wave propagates in metal and other homogeneous media, it can be used to detect internal defects due to different reflected waves on different media interfaces. Ultrasonic can detect defects in any weldment material and any part, and is usually used in combination with radiographic testing.

X-ray flaw detection

X-ray flaw detection is a method of detection using the  of ray penetration and attenuation in materials. Radiographic inspection is mainly used to check defects such as lack of penetration, porosity, cracks and slag inclusion. According to different rays, it can be divided into X-ray flaw detection, high-energy ray flaw detection γ Radiographic inspection. 

Online flaw detection

Place the pipe on the online flaw detector, and the quality of the pipe can be judged by the measured data. It is mainly used for quality inspection of longitudinal high-frequency welded pipe.