The quality inspection of cold-rolled seamless pipes is a very critical part of the seamless pipe manufacturing process. High-quality seamless pipes need to pass strict inspection procedures at the factory or factory. Do you know the quality inspection procedures for seamless pipes? If not, let us guide you through the inspection process to help you buy seamless pipe wisely. The following are four quality inspection methods for seamless steel pipes.

Ultrasonic testing of seamless pipes is a non-artificial inspection method used to detect flaws or inaccuracies in seamless pipes and tubing. Inspect pipes by evaluating differences in the acoustic properties of seamless pipes and pipes and the effects of internal imperfections. This is done based on the fluctuations of ultrasonic waves and is characterized by the symbol "UT".

The UT test method has proven to be helpful to most of the seamless pipe manufacturers and helps them to plan better quality seamless pipes according to their requirements. It also enables seamless pipe manufacturers to detect impurities and purify pipes to perfection.

During the MFL testing procedure, the surface of the seamless pipe or tube is magnetized. Magnetized by leakage in the magnetic field, pipe quality defects are picked up to generate an electrical signal of the defect. This method is also a non-replaceable inspection technique for detecting pipeline quality defects. It is classified by the symbol "LT" and is a widely used technique worldwide.

The eddy current flaw detection method is a flaw detection technology that uses the characteristics of electromagnetic induction to locate defects on the surface or near the surface of seamless pipes and pipe fittings. This method of defect detection is indicated by the initials "ET". It is one of the most powerful methods for detecting defects or inaccuracies in batches. Since the ET method flaw detection is not limited to large-diameter thermal expansion seamless pipes, it is a necessary procedure for the inspection of various seamless steel materials.

The automatically generated eddy current inspection process is mainly used in the focus probe inspection method to ensure the quality inspection of seamless pipes. It is a technique of detecting probe by probe.

Ultrasonic testing is the use of point probes to accelerate the detection of longitudinal defects in seamless pipes. Impurity or inaccurate detection speed is understood by the number and rotation speed of the probes. Usually, the detection speed is relatively slow. The latter uses probes to locate transverse defects in seamless pipes. This flaw detection method is primary, and the detection speed is fast (generally up to 60m/min).

Also, due to the highly sensitive pair of holes in the eddy current testing procedure, the primary method is an alternative to hydrostatic piping testing.

The magnetic particle inspection process is carried out by generating a magnetic field on the surface of the seamless pipe or pipe to make it partially or completely magnetized. The generated magnetic flux escapes from the surface of the seamless pipe to form a leakage magnetic field. When the magnetic powder is applied to the surface of seamless tubing, you can expect magnetic marks to form, revealing defects in the metal. Magnetic particle inspection is used by many, primarily to identify defects on the surface or sides of seamless tubing.

The Magnetic Flux Flaw Inspection program is a non-destructive evaluation method. It takes advantage of the phenomenon that ferromagnetic materials exhibit any magnetic field leakage by aggregating iron powder in a strong magnetic field. It is remembered by the symbol "MT".

Baolai is a custom seamless steel pipe manufacturer as a professional. Baolai specializes in the production, trade, import, and export of fire pipes, ERW pipes, hot-dip galvanized steel pipes, seamless steel pipes, longitudinal seam welded pipes, SSAW steel pipes, building materials, and other products. Our seamless steel tubes are available in sizes 1/2"-36" to API, ASTM, BS, DIN, and JIS standards for the transportation and construction of liquids and gases.

Common features of our seamless pipes are:

Our seamless tubing can easily withstand corrosive environments

Piping and piping are built to a high level of tolerance

Seamless tubing is stress relieved, tempered, and treated

The tube can withstand high pressures, stresses, and temperatures effortlessly