Metal Lab

K. K. Nagar, Chennai, Tamil Nadu

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.

National Accreditation Board for Testing and Calibration Laboratories we are doing following Testing Services like Chemical Analysis, Metallurgical Testing, Mechanical testing, Non - Destructive Testing , Building Material Testing, Highway Material Testing, Lubricant Testing, Fuels Testing, Water Testing, Plastic Testing, Rubber Testing, Paint Testing to all over the India.

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. 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.

We are doing the Water Testing services for Drinking Water, Packaged Drinking Water , All Chemical Parameters Including Pesticide Residuals, Micro Biological Examination (like E.coli, Faecal coliform, Total coliform), Swimming Pool Water, Water for Food Processing, Boiler Feed Water, Bore Well Water, Raw Water & Treated Water, Water for Construction Purpose, Cooling Tower Water.

We are doing the water testing services for drinking water, packaged drinking water , all chemical parameters including pesticide residuals, micro biological examination (like e.coli, faecal coliform, total coliform), swimming pool water, water for food processing, boiler feed water, bore well water, raw water & treated water, water for construction purpose, cooling tower water.

We are offering 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.