TPi January 2016

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January 2016 Tube Products International 49
Steel tubes and pipe
TMK wins Gazprom tenders to supply
premium tubular products
TMK, a producer of pipes for the oil
and gas industry, took part in Gazprom
tenders for premium tubular products.
Following two public requests for
proposals, TMK was announced the
winning bidder in eight out of 13 lots.
TMK will supply to Gazprom more
than 13,000 tonnes of seamless steel
threaded connection pipes worth RUB
1.5bn.
Approximately 6,000 tonnes of TMK’s
products will be supplied to Gazprom
Dobycha Noyabrsk and utilised in
developing the Chayanda gas field
in Yakutia, destined to become a
source of gas for the Power of Siberia
pipeline, currently under construction.
TMK has also been awarded a contract
for the supply of steel seamless oil
pipeline tubes worth more than RUB
300mn.
By February 2016, 718 tonnes of these
products will be supplied to Gazprom
Dobycha Shelf Yuzhno-Sakhalinsk.
TMK operates more than 30
production sites in the USA, Russia,
Canada, Romania, Oman, UAE and
Kazakhstan, and two R&D centres in
Russia and the USA. The company
delivers its products along with an
extensive package of services in heat
treating, protective coating, premium
connections threading, warehousing
and pipe repair.
TMK – Russia
Steeling ahead
Chandan Steel Ltd (CSL) manufactures
a wide variety of stainless steel long
products, including round bars, angles,
channels, flat bars, wires and flanges,
and claims to be India’s only fully
integrated manufacturer of stainless
steel seamless tubes and pipes.
With a history of manufacturing
operations spanning three decades,
the company exports to more than
60 countries worldwide. In 2011
CSL acquired the German flange
manufacturing plant M/s Zapp
Flanschenfabrik GmbH. The company’s
production facility for seamless tubes
is supported by machines that comply
with high quality standards. The
steel plant at Umbergaon, India, has
an in-house integrated facility for the
production of raw materials. Round bars
of different austenitic, ferritic, Duplex
and Super Duplex grades are produced
by conducting quality checks at different
stages of manufacturing, before finally
being used by the seamless tubes
division.
CSL uses the cross roll piercing method
for production of defect-free seamless
stainless steel hollows. The use of
in-house produced billets with controlled
cleanliness levels and OD peeling has
helped in eliminating surface inclusions.
Maintaining limited delta ferrite levels
in the raw material has contributed
towards avoidance of cracks. Rolling
is carried out at minimum temperatures
to improve surface finish and eliminate
rupture, and a process has been set of
high-pressure water descaling of billet,
before rolling. CSL regularly uses glass
lubrication on OD and ID of billets
during rolling, and has eliminated
surface defects through minimisation
of surface torsional and circumferential
stress deformation by adjusting feed
and cross roll angles.
Tube straightening machines ensure
minimal residual stress level in the
products, which is specifically required
for critical applications.
Chandan Steel Ltd – India