Non Destructive Testing Services
San Antonio’s Elite Non Destructive Testing Services
Today’s modern Non Destructive Testing Services are used in manufacturing, fabrication, and in-service inspections to ensure product integrity and reliability, control manufacturing processes, lower production costs and maintain a uniform quality level.
Non-Destructive Testing is the process of inspecting, testing, or evaluating materials, components, or assemblies for discontinuities, or differences in characteristics without destroying the part or system.
During construction, Non Destructive Testing Services are used to ensure the quality of materials and joining processes during the fabrication and erection phases.
In-service Non Destructive Testing Services are used to ensure that the products in use continue to have the integrity necessary to ensure their usefulness and the safety of the public.
Ultrasonic Testing (UT)
Ultrasonic Testing is a high-frequency sound energy used to determine the structural integrity of a material. The use of various modes of sound can provide vital information related to material. Transmitted or reflected ultrasonic energy is displayed on a test unit and evaluated.
Phased Array Ultrasonic Testing (PAUT)
Phased Array is an advanced method of ultrasonic testing. Phased Array is widely used for non-destructive testing (NDT) in several industrial sectors, such as construction, pipelines, and power generation. This method is used to test or interrogate a large volume of material. A conventional probe must be physically scanned (moved or turned) to sweep the beam through the area of interest. In contrast, the beam from a phased array probe can be focused and swept electronically without moving the probe. The beam is controllable because a phased array probe is made up of multiple small elements, each of which can be pulsed individually at a computer-calculated timing. The term phased refers to the timing, and the term array refers to the multiple elements.
Magnetic Particle Testing (MT)
Magnetic Particle Testing is the use of magnetic lines of flux to determine discontinuities in the surface (or near-surface) of a test object. Fine magnetic particles are attracted to leakage fields and indications are formed that can be seen visually. This method is limited to ferromagnetic-materials.
Penetrant Testing (PT)
Penetrant Testing uses penetrating liquids with good wetting characteristics which incorporate dyes used to enter surface-opened capillaries and provide an image of discontinuities that can be seen visually.
Visual Testing (VT)
Visual Testing is the use of the human eye to detect discontinuities open to the surface. VT can be either direct or indirect using viewing aids such as video-scopes, mirrors, etc.
Eddy Current Testing (ET)
Eddy Current Testing is an electro-magnetic testing method in which eddy currents are induced into an electrically conductive test object. Changes in the eddy current flow are detected by the coil or coils and displayed on the test instrument. A variety of test conditions may be determined.
Radiographic Testing (RT)
Radiographic Testing is a short wave-length electromagnetic ionizing radiation energy used to penetrate materials and provide an image for evaluation. Variations in the image are caused by changes in the structure due to attenuation or absorption. RT can be performed using either a gamma or X-ray source.
Hardness is a characteristic of a material, not a fundamental physical property. It is defined as the resistance to indentation, and it is determined by measuring the permanent depth of the indentation.