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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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