A system that never comprises with the Quality Control that is to be followed during manufacturing process of Stainless Steel Pipes. So that an audit mechanism is introduced during manufacturing itself to produce a product that completely meets the requirements of our clients.
A separate department for quality control is handled by a Q.C.(Quality Control) engineer who maintains all the records & supervises the Q.C. Inspectors.
At the raw material stage the same is checked visually for any kind of surface defects such as cracks, seams, overlapping, pitting, as well as dimensionally. A chemical & physical test is carried out before selecting the Raw material.
Heat treatment is carried out after final forging or forming as required by the code. After final forging or heat treatment a batch number is assigned to a lot and this batch number is stamped on each Pipes, Tube. and on the temperature chart which is automatically generated by temperature recorder coupled with the heating furnace. Time of final forging/forming & date is also mentioned on the chart.
Tensile test is done on a sample taken from mother Raw material or from the lots of Pipes, Tubes. in accordance with codes as required by purchaser on universal testing machine which is calibrated & approved by the authorized inspection agencies.
100% X-Ray examination is carried out on all SS Welded Pipes, Tubes.
All the Pipes, Tubes. are pickled and passivated. By pickling all the scale is removed which is formed during forging/ Forming operations. After pickling , Grinding operation is done to remove the die mark and inside / outside burrs formed during forming & machining operation. Dimensional check is carried out finally & recorded.
After the final dimensional check each steel pipe is stamped /marked for size, schedule, Fittings specification, Heat mark & batch number.
All the Stainless Steel Pipe supplied to the client are furnished with Manufacturer's test certificate. This certificate contains data i.e. Raw material composition, Heat treatment, Heat Mark, Batch Number, Hardness value, Chemical & physical test results, Radiography results, size, schedule, specification and quantity supplied.