Manufacturing Processes

Raw material: Stainless Steel Strips/Hollows of Carbon Steel/Alloy Steel/ Stainless Steel
The company uses Raw Material from reputed suppliers from India and abroad. As per technical specification standard ASTM. Hot/Cold finished matrials are checked for quality as per test certificate and then send for manufacturing process. We have two types of cold drawing process.

SEAMLESS PIPES & TUBES


PILGERING
• Cold Pilgering process using full link die and tapper mandral.
• To reduce the cross section by upto 90% because the process relies on large number of small forming steps.
• Cold Pilgering and are longitudinal cold rolling process that reduce the diameter and wall thickness of metal tube in one process step.
• By cold Pilgering process surface finish achieved matter than cold drawing finish (Less than 0.4 micron) and improved microstructure grain size.
• Our pilgering range are OD12 to 73mm and wall thickness 0.8 to 4mm.


COLD DRAWING
• In cold drawing process raw material tubes are coated with some special chemical or applied some special lubricant oil.
• The tubes are pulled through tungsten carbide die and flotting/fixed plug inside the tubes, resulting in reduced tube diameter and wall thickness corresponding increases in tube length.
• Our capacity of drawing are OD 6 to 219mm & thickness are 0.8 to 12mm.

LARGE DIAMETER PIPES
Stainless Steel Pipe(welded) 10”NB to 24” NB. in schedule 5.Schedule 10, Schedule 20,Schedule 40 and also special wall thickness is formed on 800 M.T. Press Brakes Hydraulic Press in length upto 6.0 o 7.30 meters. This section produces S.S. Pipes (welded) as per ASTMA-358 by TIG welding and filler materials is used. The large diameter pipe is then sized & straightened to meet ovality and dimensional requirements of the applicable specifications. Testing according to specification, is the performed by either X-ray or Hydrostatic method. Final marking to size, grade & specifications is done prior to final visual inspection before despatch. Chemical, Physical and Hydrostatic Testing are done regularly right from raw material stage, in process till despatching of finished product.