Nondestructive Testing service providers

  we provide  standard specifications for welding inspection procedures  for all welding process and Brazing. We offer Welder Procedure Specification, Welder Certificate Renewal Process, Procedure Qualification Record, Welder Qualification Testing, welder Training and Welder qualification services  in Coimbatore, Trichy, Salem, Erode, Chennai.

  Welding Inspection duties General   Conditions:    Understand shop drawings, erection drawings, referenced codes and standards. Review the manufacturer’s  Material Test Report (MTR) . Verify all materials properties and that all materials are readily identifiable and traceable to an MTR.    Conduct a complete visual examination of the welding area for visible discontinuities. Visual examination should include, as a minimum, the finished conditions of the seam weld.    For visual examination, the only equipment commonly used is a  magnifying glass  (10x or less) and a  flashlight . Other tools, such as a  borescope and dental mirrors , are useful for inspection inside vessels, pipe, or confined areas.    For structural plates, piping, wrought and cast steel, conduct a complete visual examination of surfaces for visible fabrication defects or discontinuities.    Verify that all applicable welders, weldi...

  Why use this TIG welding process: TIG Tungsten Inert Gas otherwise called as GTAW- Gas Tungsten Arc Welding , Involves melting the metal using the arc created by tungsten electrode, The welding can be done with or without filler metal, Argon Gas is used as shielding around the weld area, to shield the weld from atmospheric gases. As an inert gas is used for shielding the weld, the quality of weld is good without any Slag inclusions and good weld profile. TIG welding is selected to receive a high quality welds for analysis purposes   Where we use dissimilar metals ? Dissimilar metals are used in process pipe line industry, heat exchangers, boilers and Structural steel fabrication industry. SS 304/ SS316 (Austenitic Stainless Steel ) ASTM A -210  (Medium Carbon Steel) ASTM  A-36  (Low Carbon Steel )   Types of Weld Joint : Butt Joint, T Joint, Lap Joint , Corner Joint, Edge Joint Types of Joint Configuration: Joint Design:   Why we use Butt Joints To c...