Nondestructive Testing service providers

What is Mechanical Testing or Material Testing? Mechanical testing involves finding strength of the material or quality of material by application of load mechanically. There are different mechanical testing for materials. They are Tensile test, Bend Test, Impact Test, Macro Etch Test, Micro Analysis, Inter granular Corrosion test, Vickers Hardness Test, Brinell Hardness test and includes Spectro Chemical Analysis. Why is Mechanical Testing on Materials required? Mechanical tests mentioned above are essential for materials to conclude the quality of materials. The material grades are designed for some specific application, in order to withstand the loads and environment in the application. The materials grades should achieve the minimum specified property. These minimum required quality specifications are verified by manufacturer after pouring the material and manufacturer should provide a mill test report. What is MTC / What is Mill Test Report ? Mi

Radiography Testing or X ray Testing: Radiography Testing uses electromagnetic radiation from a source to capture image of the object. The source used may be gamma radiation emitting source or an X ray emitting source. Either of the radiation have capability of penetrating into matter , so that even an internally located defect’s image is captured. How is Radiography Image captured? The radiation penetrating into the object is made to fall on a detector; the detector may be a photosensitive film, a Phosphor plate, or a semiconductor flat panel. The image density formed on the film is directly proportional to the amount of radiation fall on it. Where ever the radiation falls directly on film the image is darker, when radiation passes through an object before reaching the film, radiation gets absorbed in the object and forms a lighter image on the film. The rate of absorption depend on the atomic number of the object material and thickness of the object.

What is Ultrasonic Testing ? Ultrasonic testing is the process of  detecting internal defects by use of high frequency sound waves which are non audible to human ears. The method can be used to detect flaws inside any solid material. Why is a procedure required for UT ? Any industrial operation requires a work instruction or working procedure. When it comes to special techniques like NDT – Non Destructive Testing, it is essential to have an approved procedure. They  have references from any of the international standards. Few of the global inspection standards for Ultrasonic Testing are given below: ASME Boiler & Pressure Vessel Code – Section V BS EN ISO 17640 (British & ISO Standard ) SAE AMS 2630, SAE AMS 2632 – (Aero Space Standards) How to make a Ultrasonic testing Procedure A Procedure should contain the below important contents Scope (What is range, material, type of material or weld joint the procedure covers, technique) References (the International or local Standards