SMALL DIAMETER WATER AND GAS PIPES

Vyksa Steel Works' water and gas pipes, with diameters that range from 21.3mm to 108mm, are manufactured from low-carbon steels by induction welding.
All pipes undergo 100% non-destructive testing and mechanical testing.
These pipes are used in water and gas pipelines, heating systems and constructions of various purposes.

MEDIUM DIAMETER PIPES FOR OIL AND GAS PIPELINES

These pipes are designed for oil and gas pipelines in several categories for the transport of oil and gas products, including for arctic conditions, construction, for the laying of warm line, etc.
Diameters range from 114mm to 530mm, with a wall thickness from 4.5mm to 9.0mm from carbon and low-carbon grades of steel.
The pipes are produced using high frequency welding and radio frequency with induction electrodes.

The pipes undergo multi-graded non-destructive tests and a series of mechanical tests. In the production line the quality of the welded connections is tested both ultrasonically and with eddy-current equipment.
The pipes then undergoes hydrostatic testing and 100% visual control.
Mechanical testing is carried out on elongation, impact binding etc. in a specialised laboratory.

All pipes are delivered to the user with a range of heat treatments.
Depending on the chemical analysis and heat treatment, the pipes can be produced with different tensile groups, from K34 to K55. At present, equipment for the gas and oil pipes is being upgraded to international API 5L standard in order to produce pipes with anti-corrosive coating.

ELECTRIC WELDED LONGITUDINAL PIPES AND COLD RESISTANT PIPES

These large diameter electric welded longitudinal pipes are designed for use at high & low temperatures,
for main oil and gas pipelines.
Diameters range from between 508mm to 1020mm.
The pipes have a wall thickness of between 7mm to 32mm, have a working pressure of up to 100 atmospheres and are manufactured from steel grades K38 - K60.
Cold resistant pipes produced from steel grade K60 are used for gas pipelines and compressor stations in Far North areas. We plan to commission our own facilities to apply anti corrosive coating on the spot.

In 1994 we were granted an API licence for use of API monogram on our products, which was prolonged up to 2003.
Phased multi-stage non-destructive examination ensures high quality and reliability of pipes.
We mastered manufacture of K52 - K60 pipes with high corrosive resistance according to TU 14-3p-28-99.
These pipes can be used at a temperature of even -60°C.

ELECTRIC WELDED CASINGS AND PIPE PRODUCTION

Vyksa Steel Works' electric welded casings pipe mill is the only one producing electric welded casings in CIS.
Casings are produced by a high frequency welding process.
The designed capacity of the mill is 350,000t of pipes per year.
In comparison with seamless casings, electric-welded casings have the following advantages:

Tight tolerance for wall thickness, not more than +/-5% of nominal wall thickness
The casings out-of-roundness is less than out-of-roundness of seamless pipes; due to this fact casings are more resistant to crushing by well stratums and their bore is a little bit larger than that of seamless pipes
Surface finish is better, due to the elimination of rolling defects
Pipes are supplied in random lengths of 11.0+/- 0.1m, which facilitates the running of casing string in a well.
Casings are produced from coiled steel supplied by a number of integrated steel works:
JSC 'Severstal', JSC 'Novolipetsk Steel Works' and JSC 'Magnitogorsk Steel Works'.

The weld and pipe body is subjected to UT.
Pipes are additionally subjected to hydraulic testing to ensure air-tightness of welds and soundness of pipe body.
Due to the high quality of pipe faces there are no gaps at the pipe joints, which facilitates the use of oil field and well-logging equipment.

Vyksa Steel Works
Russia, 607067, Nizhny Novgorod Region,
Vyksa-7, Lenin Street
Tel: +7-83177-35233; 93085; 93985, 93447
Fax: +7-83177- 32675; 37638
Email: market@vsw.ru
Email: sell@vsw.ru
Website: http://www.vsw.ru