ULTRASONIC TESTING

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

MAGNETIC PARTICLE TESTING

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.

DYE PENETRANT TESTING

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.

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.

EDDY CURRENT TESTING

Eddy current testing is performed on non-ferromagnetic materials for surface and sub surface discontinuities, and on ferromagnetic materials for surface breaking discontinuities in accordance with ASME V, BS EN 1711, AS4544 and other Standards. Typical applications include Tubes in air-conditioning chillers, refinery exchangers / condensers. Welds surface inspection under non conductive coatings in pressure vessels, piping, structural and lifting equipment. Surface inspection of plates and materials for cracking. Non conductive and conductive coating thickness testing. Sorting of metals and conductivity checks. 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 materials 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.

VIBRATION ANALYSIS

We offer vibration analysis services for your pumps, and through periodic measurement, will track the condition of your equipment so that emerging problems are more easily identified. It has been proven that machinery vibration analysis can provide accurate insight into many common problems related to rotating machinery long in advance. This allows us to catch small maintenance problems early and fix them cheaply before they grow into larger and more expensive failures.

TIME OF FLIGHT DIFFRACTION (TOFT) & PHASED ARRAY UT

"Metal Testing Lab" offers the current generation of phased array (PAUT) equipment with analysis software and highly experienced NDT operators certified. We have developed and used PAUT on equipment and plant within refineries, power stations, fabrication workshops, on castings, rail and mining equipment.Our experienced staff and close relationship with equipment manufacturers and other institutions allows us to have some of the best personnel developing methods of test and mentoring new staff.

ULTRASONIC THICKNESS QAUGING TESTING - UTG

Ultrasonic thickness gages offer a variety of number of benefits over mechanical and optical measurement techniques in a variety of common manufacturing and in-service test applications, supporting quality control, reliability.

• Measurement from one side: Ultrasonic gages require access to only one side of pipes, tanks, tubing, containers, hollow castings, large metal or plastic sheets, and other test pieces where the inside surface is impossible or difficult to reach.
• Versatile: All common engineering materials can be measured with appropriate gage setups, including metals, plastics, composites, fiberglass, ceramics, and rubber. Most instruments can be pre-programmed with multiple application setups.
• Wide Measurement Range: Ultrasonic gages are available for measurement ranges as broad as 0.08 mm (0.003") minimum to 635 mm (25") maximum, depending on material and transducer selection. Resolution can be as fine as 0.001 mm or 0.0001".
• Instant response: Measurements usually take only one or two seconds per point and are displayed as a digital readout.

PMI TESTING - Positive Material Identification /XRF

"Metal Testing lab" Positive Material Identification service is fast becoming an integral part of process safety management in the petroleum refining, petrochemical and electric power generation industries. Our capabilities include Portable Optical Emission Spectrometer and a number of Portable X-Ray Florescence (XRF) Spectrometers.

• Rapidly verify alloys in seconds
• Recover lost material traceability
• Isolate finished welds to validate filler material composition and dilution rates
• Confirm the integrity of process piping, valves, and reaction vessels