1. Inspection before production

          Raw material inspection including, destructive and non-destructive testing of hot rolled steel coils, electrode, welding flux and coating materials.

         Visual inspection of raw material including, hot rolled steel coils, electrode and welding flux.

         Ultrasonic test of both ends of coils. (Customer's request)

2-Inspection During production

         Welding Procedure Specification (WPS) and Procedure Qualification Record (PQR) will be prepared routinely

         Actual coil thickness will be checked by ultrasonic equipment

         On-line test for 100% weld seam.

         WSP control

3-Inspection after production

         Ultrasonic test of skelp and weld

         Hydrostatic test

         Mechanical testing of weld seam and pipe body including tensile, bending and impact test

         Magnetic particle test, liquid penetration test and radiographic test.(customer request)

          inspection of coating including thickness and adhesion as well as Holiday detection

 

 

 

 

 

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