Our conventional services include NDE/NDT Inspections, Liquid Penetrant, Magnetic Particle, Radiographic, Ultrasonic, Visual Inspection, Electromagnetic Testing, Remote Visual Inspection and Quality Assurance.
Liquid penetrant
used to detect surface discontinuities in both ferromagnetic and non-ferromagnetic materials. In castings and non-ferromagnetic materials. In castings and forgings, these may be cracks or leaks in new products or fatigue cracks in in-service components. Testing is performed using visible red dyes under visible light conditions or fluorescent dyes under ultraviolet light.
As the name implies, the dyes penetrate into the surface discontinuities by capillary action. After the excess material is removed from the material being tested, indications will appear. Evaluation and classification of material is based on code or customer requirements.
Magnetic Particle Inspection
Detects surface and near-surface imperfections such as cracks, seams and laps in ferromagnetic materials, and is used to assess location, size, shape and extent of these imperfections. When the test object is magnetized, flaws perpendicular to the magnetic field direction cause flux leakage. Magnetic particles applied to the surface are held at the location of the imperfection by flux leakage. In this magnetic particle testing technique, dry particles are dusted onto the surface of the test object as the item is magnetized. Dry particle inspection is well suited for the inspections conducted on rough surfaces. When an electromagnetic yoke is used, the AC or half wave DC current creates a pulsating magnetic field that provides mobility to the powder. The primary applications for dry powders are unground welds and rough as-cast surfaces.
Dry particle inspection is also used to detect shallow subsurface cracks. Dry particles with half wave DC is the best approach when inspecting for lack of root penetration in welds of thin materials.
Half wave DC with prods and dry particles is commonly used when inspecting large castings for hot tears and cracks.
Radiographic Testing
It is a nondestructive examination method that uses X-ray and Gamma ray for detecting internal imperfections, for measuring wall thickness and corrosion. Material is exposed to a homogenous ray from a radioactive isotope or an X-ray tube while a negative film is positioned behind the material to be examined. After development of the film, thickness and density differences (material imperfections) will show as blackness differences. Acceptance criteria define whether or not the indication is non-acceptable (a defect) or not. NDTS licensed technicians and equipment meet all the radiography regulations.
Pipeline inspection capability benefits from decades of experience in the pipeline industry. Our procedures meet standard inspection
specifications for Workmanship Acceptance Criteria or Alternative Acceptance.
We ensure that welding repairs are kept to a minimum by providing welders with quick and accurate process control feedback derived from our inspection data.
Ultrasonic Testing
We provide Manual (Conventional) Ultrasonic Testing and Automated Ultrasonic Testing. Both techniques transmit ultrasound through a material and receive the reflected echoes from the back wall or from any defects.
This makes it possible to locate discontinuities in a material or weld. During Manual Ultrasonic Testing the technician measures the
material thickness by reading from the screen. UT uses high frequency ultrasonic waves to detect surface breaking and internal
imperfections, measures material thickness and determines UT uses high frequency ultrasonic waves to detect surface breaking and
internal imperfections, measures material thickness and determines acceptance or rejection of a test object based on a reference code or standard. Our techniques provide instant results, and they are sensitive to both surface and subsurface discontinuities throughout the material. UT is capable of detecting imperfections throughout the entire material thickness, and may be used with access to only one surface.
Positive Material Identification
Identifies the composition of more than 100 different engineering alloys onsite quickly and accurately.
We can perform the method on virtually any size or shape of pipe, plate, weld, welding materials, machined parts or castings. Team
performs both X-Ray fluorescence and Spark Emission Spectrography, two methods of conducting a PMI examination.
Both methods ensure compliance with Process Safety Management requirements.
Visual Inspection
Surface inspection of welds to determine lengths and quality of the parts and also of their components, verifying
that the product complies with the requirements and specifications.
Induced Currents
Its the application of an alternate magnetic field on the surface of a conductive sample, so that a induced electric current is generated on the surface of the same.
