Non Destructive Testing
|Radiographic Testing |
This technique involves the use of penetrating gamma or X-radiation to examine parts and products for imperfections. An X-ray machine or radioactive isotope is used as a source of radiation. Radiation is directed through a part and onto film or other media. The resulting shadowgraph shows the internal soundness of the part. Possible imperfections are indicated as density changes in the film.
|Ultrasonic Testing (UT) |
Ultrasonic inspection is a nondestructive method in which beams of high-frequency sound waves are introduced into materials for the detection of subsurface flaws in the material. The sound waves travel through the material with some attendant loss of energy (attenuation) and are reflected at interfaces (cracks or flaws). The reflected beam is displayed and then analyzed to define the presence and location of flaws or discontinuities.
|Magnetic Particle Inspection (MPI) |
Magnetic particle inspection (MPI) is used for the detection of surface and near-surface flaws in ferromagnetic materials. A magnetic field is applied to the specimen, either locally or overall, using a permanent magnet, electromagnet, flexible cables or hand-held prods. If the material is sound, most of the magnetic flux is concentrated below the material’s surface. However, if a flaw is present, such that it interacts with the magnetic field, the flux is distorted locally and ‘leaks’ from the surface of the specimen in the region of the flaw.
|Liquid Penetrant Test |
Dye Penetrant Testing is a technique by which a specially designed colored dye is used in conjunction with specially formulated developers to detect surface breaking indications on any ferromagnetic or non-ferromagnetic material to assist in determining the material integrity .We are carrying out both visual-color contrast and fluorescent Dye Penetrant examination for various components like steel, aluminium,copper and stainless steel. The test object is coated with a solution that contains a visible or fluorescent dye.
|Portable Hardness Testing |
Portable hardness tester works with static load, according to the Rockwell principle, with preload, and test load. By applying pressure, the preload (the zero setting is carried out electronically) and test load are activated. The hardness value is shown on a large, backlit display as soon as the test is complete and the pressure removed.
|Visual Testing (VT) |
Throughout manufacturing and field inspection, Visual Testing is most widely used NDT method.Our highly qualified and certified visual inspection team can provide a complete range of visual inspection services for your operations. If you require third party certification, we have personnel available for dispatch 24 hours a day, 7 days a week. We can also provide Certified Welding Inspectors for field assignments or in-plant programs. We also provide endoscopy to view the internal or non access areas of parts or components.
|Vacuum Box Testing |
Vacuum Box testing is used to check for any leaks or fault in the welding of bottom & annular plates of the storage tank. The vacuum pump attached creates a vacuum in the vacuum box, which shows bubbles on the soap water applied on the weld in case of any leaks or faults. This is one of the most adoptive test methods to detect leak or defects and widely used in the bottom plate of Tank, Ships & barge bottom plates etc.
|Positive Material Identification (PMI) |
Positive Material Identification (PMI) is the identification and chemical analysis of various metal alloys through nondestructive methods. PMI can be conducted on-site or in the laboratory. Positive Material Identification (PMI) provides alloy chemistry and grade ID information instantly using a handheld tube-based analyzer without having to transport, alter, or damage the material. PMI is also used to ensure that the parent material in vessels and pipe spools is composed of the correct composition and once the component is welded that the correct filler material was used.