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Quality Assurance of AVN
 
Quality Assurance of AVN Tubes

Quality Conrol begins at the raw material stage itself. Material is inspected for chemical composition and tested for other parameters like mechanical properties, gauge variation, etc., for a total evaluation of the raw material to ascertain its suitability for the intended end-use applications. At the tube mills, each product for the customer is processed according to the norms sequenced by the process control engineers based on stringent international standards and monitored through uncompromising quality control tests at every stage.

Quality Assurance at the tube mills and draw bench is carried out through both destructive and non-destructive tests for weld integrity. Such as cone test, flattening test and crushing tests on-line and off-line.

All safety requirements are adhered to and critical parts undergo 100% non-destructive testing before packing and dispatch. Other mechanical testing for tensile strength, yield strength and hardness are conducted as part of the process sequence in line with the customer's specifications. These include dimensional and visual checks for thickness, outside diameter, inside diameter, ovality, fin height, surface finish and other material defects. After certification the products are dispatched.

Wherever required, Work Test Certificate is furnished. Further inspections by third party like LLOYDS, RITES, BUREAU VERITAS or customer's own inspection are provided for, if required by the customer.

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