TPi January 2016

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52 Tube Products International January 2016
Steel tubes and pipe
Steel pipes and fittings
Hebei Senhai Pipeline Co, Ltd is a
manufacturer and exporter of steel pipes
and fittings. The company is located in
Cangzhou City, China, about 120km
from Tianjin seaport and airport, and
180km from Beijing.
The company produces large diameter,
thick wall steel pipes by ERW, SSAW
and LSAW, and various anti-corrosion
pipes. Seamless steel pipes range in
size from 21.3 to 660mm, and 2 to
50mm wall thickness.
Square hollow sections and rectangular
hollow sections are available from OD
20 x 20mm to 600 x 600mm, in wall
thicknesses from 0.8 to 50mm. Anti-
corrosion of steel pipes includes 3PE and
3PP outer anti-corrosion layer; single
and double FBE layer anti-corrosion;
internal wall anti-drag coating of line
pipe; polyurethane insulating pipe; and
anti-corrosion by adding cement-and-
sand layer. Steel butt-welding pipe
fittings range in size from ½" to 72".
Hebei Senhai Pipeline Co, Ltd – China
New markets for stainless steel
finned tube heat exchangers
Heat exchangers are used in many
industries, including the emerging
markets of fuel cell, waste heat
recovery and micro power generation
– all projected to be multi-million pound
worldwide markets in the near future.
With specific requirements to deal
with corrosive condensates and high
temperatures, the use of stainless
steel fins on stainless steel round or
elliptical tubes, including 5mm small
bore, challenges traditional matrix
manufacturing methods, to reach
required heat transfer requirements.
Power Fin Technologies is a UK-based
exporter of finned tubes and finning
machines. David Pierce, the company’s
owner and sole director, has been
in the heat transfer industry for over
40 years, and in that time he has
bought, managed and sold a number
of successful companies. He has also
developed and patented eight related
products.
Mr Pierce’s original patented linear
motor Elfin finning machine is capable of
mechanically bonding any two metals.
This produces an interference, swaged
fit between fins and tubes to form
a durable matrix, which extends the
surface area of the tubes to dissipate
heat or cooling more rapidly, without
deformation of the base tubes.
Infinity, the latest Power Fin machine
technology, uses the same process but
positions multiple fins at once. They are
claimed to be the only machines that
can join any two metals with precision,
using a clean, green process.
Stainless steel tubes are difficult to fin,
especially if they are elliptical, thick
walled, or micro bore tubes of 5mm or
smaller diameter.
As the interference fit is achieved by
the fin, all sizes and specifications
can be accommodated with ease. The
precision of manufacture also produces
heat exchanger cores of consistent
performance.
Power Fin Technologies – UK
Worldwide distribution
Tube Developments has supplied
carbon steel pipes to many geographic
locations around the world, from the
Total Mariner project in the UK North
Sea to the Petrobras Iracema project
located offshore Brazil in the Santos
Basin.
Since the company was founded 50
years ago it has grown into a leading
stockist of seamless process pipes
and high yield structural tubulars. At
any one time, over 10,000 tonnes
are kept in covered warehouses at
the company’s premises in Glasgow,
UK.
The company states that its reputation,
gained for successfully supplying
carbon steel pipes, has seen it working
on complex projects in every country
of the world.
Tube Developments continually
updates its website to improve
customer interaction and usability. It
decided to add all vendor approvals
and certifications, including quality
assurance qualifications that can be
downloaded directly from the website.
The Project Award Schedule is a new
feature that provides both existing and
future customers with a greater insight
into the company’s activities. The
schedule contains details of projects,
customers, locations and materials
supplied around the world.
Tube Developments Ltd – UK