January 2012 Tube Products International
65
copper tubes
In the plumbing trade the size of copper
tubing is measured by its nominal
diameter (average inside diameter). Some
trades, heating and cooling technicians
for instance, use the outside diameter
(OD) to designate copper tube sizes.
The HVAC tradesman also uses this
different measurement, in order not to
confuse water pipe with copper pipe
used for the HVAC trade, as pipe
used in the air-conditioning trade uses
copper pipe that is made at the factory
without processing oils that would
be incompatible with the oils used to
lubricate the compressors.
The OD of copper tube is always
1
/
8
"
larger than its nominal size. Therefore,
1" nominal copper tube and 1
1
/
8
" ACR
tube are the same tube with different
size designations. The wall thickness
of the tube, as mentioned above, never
affects the sizing of the tube. Type K ½"
nominal tube is the same size as Type L
½" nominal tube (
5
/
8
" ACR).
Nissan Copper Limited
– India
Multimetals Limited was founded in 1962
as a joint venture with Revere Copper
and Brass Inc, USA. The company is
a manufacturer of seamless extruded
drawn copper and copper alloy products
including tubes of 90/10, 95/5 and 70/30
cupro nickel, cunifer, aluminium brass,
admiralty brass, 70/30 brass, 63/37
brass and naval brass conforming to
various international standards. The
company caters to industries such as
air-conditioning, refrigeration, heat
exchangers, nuclear and thermal
power plants, shipbuilding and repairs,
petroleumrefineries, sugar plants, defence
establishments and naval warships.
In addition to standard products,
Multimetals
manufactures
other
copper-based alloy semis, to customer
requirements of chemical, mechanical,
metallurgical and physical properties.
The alloys include aluminium bronze,
manganese bronze, naval brass, 90/10
copper nickel, 70/30 copper nickel,
forging brass, tellurium copper and
nickel silver, in the form of hollows,
sections, profiles, rods and wires.
These alloys provide a combination of
strength, anti-corrosion properties and
oxidation resistance. The company also
manufactures copper nickel tubes in
LWC form, and has an in-house facility
to make U-bend tubes, low finned tubes
and surface enhanced finned tubes.
Multimetals Ltd
– India
Seamless, extruded and drawn
copper and copper alloy
Copper
tubes from
Multimetals
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TheWorld of Tube& Pipe Products,Materials&Ancillaries
July 2011
Januar
2
Features
2012
April
Inspection equipment
Small diameter high precision tubes
Construction, building and structural
tubes
Plastic pipes
Show issue: Tube Russia 2012
July
Oil and gas pipelines
Extruded tube
Materials handling, logistics and packaging
Show issue: Tube China 2012
SAW Pipes
from stock or newly produced from Stock Plates
in diameter 16” up to 48”
Seamless Pipes
from stock in diameters from 1” up to 24”
Steel Plates
from stock in wall thicknesses from 10mm up to 200mm
Standard Piping Products
from stock in diameters ½” up to 48”
Special Piping Products
produced from Stock Plates,
Pipes or Forgings
Material Grades:
Various carbon- alloy- and stainless steel grades for structural-process
and line pipe application.
Standards and Design Codes:
API, ANSI, ASME, ASTM, BSI, EN, ISO, DIN, NACE
EEW-CTS GmbH
Lindemannstr. 64
D-40237 Düsseldorf/Germany
Tel: +49-211-49769914 or +49-211-4976990
Fax: +49-211-49769929
Email:
EEW-CTS Düsseldorf
YOUR PARTNER FOR FAST TRACK STEEL SUPPLIES
