March 2013 Tube Products International
57
large diameter pipe
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Large diameter manufacturer
Siderúrgica de Tubo Soldado Tubular
Group (STS) specialises in large
diameter helically welded steel
pipes. STS offers a range of pipeline
services, from oil and gas, and water
to structural pipes. The diameter of the
pipe can vary from 20" to 120", and the
maximum thickness of the pipes can
reach 25.4mm (1").
The company leads a group dedicated to
the manufacturing and specific coating
of pipes with a 450,000m
2
pipe mill that
is equipped with the latest technology,
located in the North of Spain.
STS offers integrated solutions to
clients. As well as manufacturing
pipe, the company has a coating
plant within its pipe mill, which can
provide exterior coating with hot-melt
extruded polyethylene, using a two or
three layer system, as well as with
polypropylene, fusion bonded epoxy
(FBE) and polyurethane (PUR). For
internal coating, alimentary epoxy paint
suitable for drinking water is used, and
other epoxy paints are used for gas, oil
and various applications.
Siderúrgica de Tubo Soldado Tubular
Group SA
– Spain
Stock extension
Hart bv supplies full packages of piping
materials, plate and bar for large projects
on long delivery times in nickel alloys.
Customer specifications and additional
testing is standard for such projects.
For shutdowns and maintenance jobs,
Hart uses its large stocks in Alloy 200,
201, 400, 600, 625 and 825 seamless
pipe, fittings and flanges. The company
recently increased its stock with new
sizes of seamless pipe.
Hart already stocked BW fittings in
Alloy 400 and Alloy 600, and Alloy
625 and 825 were also added. Hart bv
was established in 1964, and quickly
developed to be a major stockholder
of flanges and fittings in low alloys and
stainless steel, holding many contracts
with large petro-chemical companies.
Hart bv
– The Netherlands
