Nondestructive Testing service providers

  NDT Course fees depends on the type of NDT Course Selected, such a number of methods and the International standard chosen for the certification The Average course fees for General NDT course will be Rs.17500, This course fees Rs.17500 is for ASNT Level II Certification course of 5 NDT methods including – Ultrasonic Testing & Ultrasonic Thickness Testing, Radiography Testing & RT Film Interpretation, Visual Testing, Liquid Penetrant Testing, Magnetic Particle Testing, The split out the course fees are as follows Ultrasonic Testing – Rs.5000 Radiography Testing and RTFI – Rs.5000 Liquid Penetrant Testing – Rs2500 Magnetic Particle Testing- Rs.2500 Visual Testing – Rs. 2500 Few Institutes similar to Advanced Quality Centre  https://aqcinspection.com/  offer additional or bonus courses like Ultrasonic Thickness Gauging, Positive Material Identification PMI, Destructive Tests / Mechanical tests, etc. at free of cost. The Course for Mechanical QA QC Course shall be R...

  Ultrasonic Testing Ultrasonic Testing utilizes high frequency sound waves which are not audible to human ears. The Ultrasonic sound waves are used for measurements of thickness of any material. General frequency used in ultrasonic thickness measurements probe is 5 Mega Hertz and above. The probe is placed over the material surface with a liquid or gel spread over the surface. The liquid may be water, oil or gel, which acts as couplant and the couplant eliminates air gap between probe and material. Sound from the probe travels throughout the material and reflects back when it meets the end of the material.  When it meets another material with a different acoustic property, by having the time taken by sound to travel to end and return back the machine calculates accurately the thickness of the material. The technology is very useful to measure thickness of complex profiles and hollow sections, where there is no access on the inner side of the sec...

  What is Ultrasonic Testing? ULTRASONIC TESTING is a method for sending ultrasound into material and analyzing the returning sound waves for defect free components. It use scanning devices called probes. After application of Couplant over the material surface probe is place over the material. The sound travels to the end of the material and reflects back to the probe. There will be a change in acoustic property between the material and air. As a result the reflection sound is noted as back wall echo in the UT flaw detector machine screen. How to scan for defects in Ultrasonic Inspection? If the sound waves meet a defect in between the front walk and back wall, again there will be reflection due to acoustic property. Difference between the material and defect material, which appears between the initial sound echo and back wall echo. Thus any defect inside the material is detected by noticing the defect echos in between the initial echo and backwall ec...

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 S...

Ultrasonic Testing involves utilization of ultrasonic sound waves to detect defects inside a material. The welded joints have possibilities of defects inside the welds , or sometime near the weld zone. The few of defects that are often found in welds are Porosity, Cracks, Slag Inclusion, Lack of fusion, Lack of Penetration, Root concavity, Crater pipes, sharp undercuts, Burn through, HAZ cracks and much more. These defects when located deep and cannot be viewed manually, Ultrasonic scanning  is utilized to detect these discontinuities. The conventional ultrasonic testing of weld joints method which is shown here is totally operator reliable.Therefore the international bodies requires the operator to be qualified as per a standard and the machine used also meets standards requirement. Where to learn NDT? The certification may be ASNT Level 1, Level II or Level III or PCN or ISO 9712 qualification. There are many best NDT training institute for NDT c...

Oil and gas pipelines are designed with wall thickness considering the facts of Design pressure + Corrosion allowance +safety factor. Corrosion thickness testing Using UTT: The corrosion allowance is decided by pre-existing data of corrosion rate for a specific environment and carrying liquid. Based on the corrosion rate the life of the pipeline or tanks is estimated. There are also possibilities that the corrosion rate may vary than predicted. Depending on the climate and processing fluids characteristics. So the wall thickness should be periodically checked to monitor the reduction in wall thickness. If any low thickness areas, lower than the minimum allowed wall thickness is noticed, the pipeline or tank shall be repaired. And also if the rate of corrosion is noted to be at a faster than estimated the pipeline or tanks life shall be redefined and next inspection period shall be planned earlier than planned initially. Corrosion rates can be calculated by finding the difference betwee...

All you need to know about Ultrasonic Testing from AQC- Best Ndt Training Institute and Ultrasonic Testing Service provider in Coimbatore , TamilNadu, India Ultrasonic Sound is sound propagating in higher frequencies that are not audible to human ear. Generally sound with frequency (Frequency number of cycles per unit time) more than 20,000 Hertz is known as ultrasonic. For creation of sound we need to vibrate any matter, therefore in Ultrasonic testing we make a crystal to vibrate in higher frequency (generally  20,00,000 times) to produce Ultrasonic sound waves. These sound waves travels into material , and gets reflected back when it hits any different matter of different elastic property. For the purpose of creation of sound and receiving of sound we use Piezoelectric Crystal. What is Piezoelectric Crystal? The crystal grains which makes mechanical vibrations when electricity is applied and vice versa. The Crystal creates electric energy when mechanically vibr...

What is the defect size accepted in Ultrasonic Testing ? Indications which are identified using any NDT method is accepted or rejected in reference with the standards. The standards which client accepts or the standard which we follow for production  is called as acceptance criteria. Few of the important acceptance criteria are given in this blog.For more detailed understanding of NDT, Ultrasonic testing(UT) inspection services and defects visit us on https://aqcinspection.com/ Acceptance Criteria : ASME Section VIII Division 1 – Pressure Vessel Construction – Ultrasonic Testing (UT) Inspection Services   These Standards shall apply unless other standards are specified for specific applications within this Division. Imperfections which produce a response greater than 20% of the reference level shall be investigated to the extent that the operator can determine the shape, identity, and location of all such imperfections and evaluate them in...