
Weld inspection services according to ISO standards
Weldtest Latvia specializes in comprehensive weld quality testing using advanced non-destructive testing methods. We provide accurate defect detection and material integrity assessment for a variety of metal products.

Visual inspection (VT)
Visual inspection is the basic method that begins any weld quality inspection. It involves visual assessment of the welded joints and base materials to identify surface defects such as cracks, pores, incomplete penetrations or excessive curvature.
Detects surface defects: cracks, pores, deformations
Suitable for initial control
Complies with EN ISO 17637
Why is it important? VT allows for the rapid and efficient detection of visible defects that can affect the strength and safety of a structure. It is a cost-effective and necessary step before applying more complex testing methods.
Application: We perform visual inspections of metal structures, tanks, pipelines and other metal products, ensuring that surfaces meet specified standards.
Magnetic Particle Testing (MT)
Magnetic particle testing is an effective method for detecting surface and subsurface defects (e.g. cracks) in ferromagnetic materials. The surface to be tested is magnetized and magnetic particles are applied to it. At the defect locations, distortions in the magnetic flux lines attract the particles, creating visible indications.
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Virsmas un tuvu virsmai esošu plaisu noteikšana feromagnētiskos materiālos
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Piemērota metinājumiem, metāla detaļām
Why is it important? MT allows you to detect even very fine surface cracks that are not visible to the naked eye and that can lead to serious damage during operation.
Application: This method is most often used for metal structures, metal tanks, pipelines and other ferromagnetic parts where high accuracy of surface defect detection is required.


Ultrasonic testing (UT)
Ultrasonic testing is one of the most widely used non-destructive testing methods. It allows for a convenient and quick assessment of the quality of a metal or its welded joint.
It uses high-frequency sound waves to detect internal defects in materials, such as cracks, welds, inclusions, and porosity in welds and base materials.
Fast and easy defect control for material with a thickness starting from 8mm;
Suitable for all butt joints;
Complies with EN ISO 17640
Why is it important?
A quick and easy testing method for internal material quality control, allowing you to assess the quality of welds without damaging the material. It is critical for safety and quality control.
Application:
We perform ultrasonic testing of metal structures, tanks, pipelines, and various metal products to guarantee their internal integrity and operational safety.
Ultrasonic Thickness Measurement (UBM)
Ultrasonic thickness measurement is a method that uses ultrasonic waves to accurately determine the thickness of materials, without the need to cut or damage them. It is especially useful in hard-to-reach areas or when regular thickness monitoring is required.
Accurate determination of metal wall thickness
Useful for corrosion control, reconstructions
Why is it important?
UBM is essential for assessing material deterioration caused by corrosion or erosion, which can affect the load-bearing capacity and safety of structures. Regular measurements help prevent emergency situations.
Application:
We regularly perform UBM on tanks, pipelines , and other equipment where material thickness is a critical parameter for safe operation.


Radiographic testing (RT)
Radiographic quality testing is the most effective method for pre-detecting internal defects in metals or metal weld joints.
Suitable
For internal defect inspection of metals with a thickness of less than 8 mm.
For quality control of steel, stainless steel and aluminum products.
Complies with EN ISO 17636-1
Why is it important?
Radiographic quality testing allows for the precise identification of internal defects, their shape and size.
Allows you to find subtle internal defects.
Application:
In all areas where a high level of quality control is important, e.g. high-pressure vessels and pipelines.
Penetration Testing (PT)
Penetration tests use special liquids with a high flow coefficient that can penetrate even the smallest surface defects, such as fine cracks and channel pores.
The testing method does not depend on external power sources.
Can be used for quality control of steel, stainless steel and aluminum products.
Can be used in places with difficult access.
Conforms to EN ISO 3452-1.
Why is it important?
The penetration method makes it possible to find fine, dangerous surface defects, such as cracks, in products made of different metals with different physical properties.
Application:
This method is most often used for quality control of stainless steel products or for testing aluminum.

