Non - Destructive Testings:

Metal lab provides inspection and Non-destructive Testing (NDT) primarily to the petrochemical, offshore, engineering and construction sectors .We combine quality and safety with experienced management and advanced technical expertise to offer a complete service to industry.

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Non-Destructive Testing is the branch of engineering concerned with all methods of detecting and evaluating flaws in materials. Flaws can affect the serviceability of the material or structure, So NDT is important in guaranteeing safe operation as well as quality control and assessing plant life. The flaws may be cracks or inclusions in welds and castings, or variations in structural properties that can lead to loss of strength or failure in service. The essential feature of NDT is that the test process itself produces no deleterious effects on the material or structure under test.

  1. Ultrasonic Testing

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Ultrasonic Testing   is an NDT method applied to detect internal flaws in materials, components and structures. Ultrasonic is sound beyond the human audible range that is 20 to 20 kHz. Ultrasonic inspections use frequencies of above 0. 5 MHz up to 25 MHz to test metals, ceramics, glass, composite and other engineering materials.

Ultrasonic testing is commonly used for inspecting castings, rolled bars, plates, forgings, thin sheets, extruded components, drawn components, welds and to measure reduction in thickness of pipes, vessels and other components

2) Magnetic Particle Testing

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Magnetic particle testing is a method for detecting cracks and other discontinuities on surface and subsurface of ferro-magnetic materials. Sensitivity of detection is maximum at the surface and diminishes rapidly with increasing depth of sub-surface defects. Detection of defects depend on the fact that when a material is magnetized, discontinuities which lie transverse to the direction of magnetization cause distortion of the magnetic lines of flux and a leakage field is formed at or above the surface, some of these particles are held by the leakage flux. These magnetically held collection of particles form outline of effects and show location, shape and extent of the discontinuities. A number of factors such as direction and strength of the magnetic field, magnetic character of the part, location and orientation of discontinuities and type of the magnetic powder applied, affect the formation of the powder pattern, and therefore exact location of the flaw is indicated by the method.

3. Dye Penetrant Testing

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Dye penetrant testing is the most reliable method of finding defects and discontinuities opened on the surface especially in all non-porous materials. This method is widely used for testing of non-magnetic materials.

4)Eddy current Testing

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Eddy current testing electrical currents are generated a conductive material by an induced magnetic field. Distortions in the flow of the electric current (eddy currents) caused by imperfections or changes in a material’s conductive properties will cause changes in the induced magnetic field. These changes, when detected, indicate the presence of the imperfection or change in the test material.

5. Radiographic Testing

Radiographic testing method is useful for the detection of internal flaws in many different materials and configurations especially used for quality assurance of castings, forgings and welds. An appropriate radiographic film is placed behind the test specimen and is exposed by passing either X-rays or gamma rays through it.

6. Vibration Analysis

Vibration Analysis a fundamental requirement in all vibration work, whether it is in the design of machines which utilize its energies or in the creation and maintenance of smoothly running mechanical products, is the ability to obtain an accurate description of the vibration by measurement and analysis.

7. Acoustic Emission Testing (Leak Testing)

Acoustic Emission Testing Services for Pressure Vessels, Steam pipes, Cryogenic tanks,
Above Ground Storage Tank bottom Corrosion 

First Hydro test of a new Pressure Vessel according to ASME-V Part 12
Requalification Hydro test of a used Pressure Vessel
On Line Pressurization (in-service with working fluid) 
Leak Detection using Acoustic Emission
Valve Leakage, Pipeline Leakage, Storage Tank Leakage

8. Infrared & Thermography

Infrared Electrical Inspections and High Voltage Testing for Power Plants and Commercial Business. Thermography enables the thermal profile of an item, machine or building to be presented in a graphic from which allows a working temperature assessment to be derived. From this, variations in the material or component temperature are identified, enabling working limits or corrective actions to be identified