Using UltrasonicTestingin Determiningthe Degree of Symmetry of a Steel Slab

Abstract

Thiswork aimsandexplaining scientifically that Non- destructive testing plays an important role in the quality control ofa product. It is used during all the stages of manufacturing of theproducts. It decreases the cost of the product by reducing scrap and conservingmaterials,labor and energy. NDT is used for detecting the leakage in pipelines for oil and natural gas, oil tankers, aero planes, aero space, measuring the thickness of steel and alloys. The methods of NDT range from the simple to the complicated. The visual inspection is used for surfaceimperfections, liquid penetrate testing can be used for detection of open-to– surface discontinuities in anon-porous material. Magnetic particle testing is used for materials which can be easily magnetized , eddy current testing is widely used to detect surface flaws and to measure thin walls from one surface only.Radiographic testing is used for the detection of internal leakages in many different material using x-rays or gamma rays .The leakages ultrasonic testing which has a superior penetrating power than radiographic testing and can detect leakage deep in the test specimen in range of 6 to 7 meters of steel . It is quite sensitive to small leakages and allows the precise determination of the location and size of the defects. Ultrasonic testing Peaceful technique NDT detection .