Copper Tubes (Air conditioning Systems and Refrigeration Systems)

The Copper tubes that we manufacture are extensively used in Air conditioning

systems. The use of copper tube in air-conditioning and refrigeration systems has

grown steadily in recent years. This is in large measure due to the inherent properties

of the copper metals and their unique abilities to meet the needs of the ACR industry.

Stringent new requirements, including demands for increased operating efficiency

and the reduction or elimination of harmful emissions, have led to a new appreciation

for copper tube's role in product enhancement.

Product Specifications -
Weight Calculation
(OD-WT) x WT x 0.0281 = KGS/ MTR

Plain Tubes Connecting Tube Coil Sets for Split ACS Pancake Coils Single Layer

Outer Diameter 4.76mm to 150mm Outer Diameter 4.76mm to 19.05mm Outer Diameter 4.76mm to 19.05mm

WT 0.35mm to 3.0mm Length 5 MTRS or as per customer's Wall 0.41mm & 1.24mm
requirement
Straight length Upto 6 MTRS Length 15 MTRS

Internally Grooved Tubes Double Layer Double Layer

Outer Diameter 9.52mm Outer Diameter 4.76mm to 19.05mm Outer Diameter 1.5mm to 3mm

Wall 0.35mm & 0.30mm Wall 4.76mm to 19.05mm Wall 0.30mm & 0.6mm

No. of grooves As per Japaneses Length 15 MTRS & 30 Length Straight lengths as
standards MTRSstandards per customer needs

Copper Tubes for Water and Gas

Copper Tube to BS EN 1057 - R250 (Previous Designation BS 2871: Part 1: Table X) Half

Hard Straight. This products is supplied in 3 or 6 meter straight lengths in the half hard

condition, an ideal temper for cold bending and forming. STAR Flow Tubes can be

easily bent on an appropriate bending machine for 6 to 22mm O.D. sizes, with a

bending spring. Its ease of manipulating and relatively light weight, combine with its

ability to withstand high internal pressure makes STAR flow the ideal products for most

hot and cold water, central heating and gas services installations.

This is the general-purpose copper tube for above ground services. Ideal for Drinking

Water, Central Heating, Sanitation, Hot and Cold Water, Industrial & Medical Gas

Transportation, Various Engineering.

 Sizes mm 6 8 10 12 15 22 28 35 42 54 66.7 76.1 108 133 159

Max. Mean
O.D. mm 6.04 8.04 10.04 12.04 15.04 22.05 28.05 35.06 42.06 54.06 66.77 76.17 108.07 133.2 159.2

Min. Mean
O.D. mm 5.96 7.96 9.96 11.96 14.96 21.95 27.95 34.94 41.94 53.94 66.63 76.03 107.93 132.8 158.8

W.T. mm 0.6 0.6 0.6 0.6 0.7 0.9 0.9 1.2 1.2 1.2 1.2 1.5 1.5 1.5 2

Max. W.P.
(65C) Bar 133 97 77 63 58 51 40 42 35 27 20 24 17 14 15

Also as per BS EN 1057-R220

(Previous Designation BS 2871: Part 1: Table Y) Supplied as either 6m long half-hard straight lengths, or annealed 25m or 23m long
coils. With a wall thickness approximately 1.5 times thicker than "STAR-TUBE”, it is the ideal product for underground applications.
The extra wall thickness also allows its use on certain pressurized stem installations with maximum working temperature of 65°C.
These copper tubes are recommended for use on underground services and are also suitable for: Drinking Water, Central Heating,
Sanitation, Gas, Various Engineering Applications.

STAR Copper Pipes are available with IBP Conex fittings for the complete Copper Plumbing solution.

Copper Tubes for General Engineering

Copper Tubes, manufactured by us, can also be used for general engineering. In residential buildings and small one- and two-story
commercial buildings, the drainage piping is usually straightforward in design and simple in installation. Type DWV copper tube,
installed with good workmanship by an experienced plumber, will provide many years of trouble-free service.

Copper DWV tube has been used successfully for years in all parts of drainage plumbing systems for high-rise buildings-for soil and
vent stacks and for soil, waste and vent branches. Copper tube's lightweight and the ease with which it can be prefabricated have
been especially important in high-rise drainage systems.

Copper Tubes for General Engineering

B.S. 2871 Part 2/72 C 106

Near Equivalent specification IS 2501/ 77 DHP

Physical Properties:

Condition Tensile strength N/mm2 % Elongation on 5.65 A Min.

Annealed 200-250 40

Half Hard 250 Min 30

As Manufactured 280 Min

Chemical Requirements:

Copper Tube (Incl. Silver) 99.85% Min.

Phosphorus 0.013 to 0.5%

Total Impurities 0.06% Max.

Copper Bus Tubes For Electrical Application

As per B.S. 2871 Part - 2/72 C 101

Near Equivalent specification B.S. 1977/ 63 & (ASTM B - 188-81)
Uses
Copper tube used for gas, heater and hydraulic lines, oil burners, refrigerators,
evaporators and heat exchangers.
Hollow (round, square, rectangular and elliptical) electrical conductors in high
voltage installation, induction furnaces etc.

Physical Properties: Chemical Requirements:

Temper Tensile strength % Elongation on Copper (Incl. Silver) 99.9% Min.
kg/mm2 5.65 A Min..
Lead 0.005%
Annealed 20.5 to 25.5 40
Total Impurities
As drawn (M) 27.50 Min (Excl. Oxygen) 0.03% Max

Electrical Conductivity 99.25% I.A.C.S Min. at 20° C (Annealed)

Physical Properties: Chemical Requirements:

Temper Tensile strength % Elongation on Copper (Incl. Silver) 99.85% Min.
kg/mm2 Min. 5.65 A Min..
Lead 0.013 to 0.05%
Annealed 21.5 33
Total Impurities
As drawn (M) 23.5 13 (Excl. Oxygen) 0.06% Max.

Copper Tubes for Heat Exchangers & Locomotives

As per B.S. 2871 Part - 2/72 C 101

Near Equivalent specification B.S. 1977/ 63 & (ASTM B - 188-81)
Uses
Copper tube used for gas, heater and hydraulic lines, oil burners, refrigerators,
evaporators and heat exchangers.
Hollow (round, square, rectangular and elliptical) electrical conductors in high
voltage installation, induction furnaces etc.

Physical Properties: Chemical Requirements:

Temper Tensile strength % Elongation on Copper (Incl. Silver) 99.9% Min.
kg/mm2 5.65 A Min..
Lead 0.005%
Annealed 20.5 to 25.5 40
Total Impurities
As drawn (M) 27.50 Min (Excl. Oxygen) 0.03% Max

Electrical Conductivity 99.25% I.A.C.S Min. at 20° C (Annealed)

Cpper Tubes for Heat Exchangers & Locomotives

We recommend our copper tube for heat exchangers and condensers because
copper's inherent superiority in thermal conductivity, corrosion resistance and strength
has made it a preferred primary metal for Heat exchangers(radiators) and condensers
since the dawn of cars and trucks.

Now, with new technologies, our copper tube can be used to make smaller, lighter
and stronger copper radiators. These radiators will be far more environmentally friendly
because they are lead free and easier and cleaner to produce. Made with a non-toxic,
low temperature allow based on the CuNiSnP system, they can be brazed in the same
vacuum and controlled atmosphere furnaces used for aluminum radiators and at the
same temperature (approx. 600°C). And since flux isn't present, cleaning after brazing
isn't needed and no dangerous metals remain in the brazing material.

Copper Tubes for Heating Application & Solar Panels

The copper tube we manufacture finds numerous applications in Heating and Solar
Panels. For steam-heating systems, especially return lines, the outstanding corrosion
resistance and non-rusting characteristics of copper tube assure trouble-free service
and maintenance of traps, valves and other devices.
A modern application of an ancient principle, radiant panel heating, can be used
successfully in nearly all types of structures. In panel systems, low-temperature hot
water, circulating through coils or grids of copper tube embedded in a concrete
floor or plaster ceiling, warms the surfaces and the air. Panel systems offer uniform
heating and comfort, an invisible heat source, complete use of the floor area,
cleanliness and the elimination of dust-carrying drafts.

Listed below are the properties of the Copper tubes manufactured by us that are ideal for heating applications -

Chemical Requirements:
Temper Tensile strength % Elongation on Copper (Incl. Silver) 99.85% Min.
Kg/mm2 Min. 5.65 A Min..
Phosphorus 0.013 to 0.05%
Annealed 21.5 33
Total Impurities 0.03% Max
As
Manufactured 23.5 13

Copper Tubes for Heating Application & Solar Panels

The industrial copper tubes and copper pipes that we manufacture for the automobile
industry has certain advantages over other metals. Copper had been proved since
the early days to have many good attributes. It is easy to bend and has very high
corrosion resistance.
Copper's inherent superiority in thermal conductivity, corrosion resistance and strength
has made it a preferred primary metal for radiators since the dawn of cars and trucks.
Now, with new technologies, it can be used to make smaller, lighter and stronger
copper radiators. These radiators will be far more environmentally friendly because
they are lead free and easier and cleaner to produce.
Additional increased copper content results from a number of accessories being electric instead of hydraulic. Power steering
and braking are achieved electrically. The efficiency and performance of these two technologies make them candidates for
installation on internal combustion vehicles in the near future. Heating and air conditioning are also achieved electrically and
in some cases with a heat pump.
Electric Vehicles and even hybrid Electric Vehicles will use approximately twice as much copper as a conventional vehicles and
this will provide the added advantage of excellent recyclability when the vehicle is removed from service.

Copper Tubes for Marine Applications

Our industrial copper tubes and copper pipes can be widely utilized in the design of
seawater systems for their excellent resistance to corrosion and biofouling and many
other excellent properties. Copper corrodes at negligible rates in unpolluted air, water,
and deaerated nonoxidizing acids. Copper alloy artifacts have been found in nearly
pristine condition after having been buried in the earth for thousands of years, and
copper roofing in rural atmospheres has been found to corrode at rates of less than
0.4 mm in 200 years.
Copper alloys resist many saline solutions, alkaline solutions, and organic chemicals.
However, copper is susceptible to more rapid attack in oxidizing acids, oxidizing
heavy-metal salts, sulfur, ammonia (NH3), and some sulfur and NH3 compounds.
Copper is widely used in applications like freshwater and seawater supply lines, heat
exchangers, condensers, shafting, valve stems, and marine hardware - in which
resistance to seawater, hydrated salt deposits, and biofouling from marine organisms
is important.

Copper Strips, Bus Bars & Profiles

We understand the technicalities of working with copper, a softer metal than steel, and one that requires some extra skill in fabricating
busbars. With our prototyping capability, we can usually provide samples of busbar, copper busbars and electrical busbar for
evaluation. Our copper also finds numerous uses in electrical industries.

COPPER SECTIONS COPPER FLATS

Some of the properties of copper used in this application are listed below -
 Tensile
Copper Temper Stren. Hard
Thickness Bend Test
Alloy No. Desi. (N/ ness HV
mm2)
Upto &
Over Transverse Longitudinal
incl.
0.5 10
C-1100 Annealed 210 Angle Radius Angle Radius
mm mm
0.5 2.0
Half Hard 240 55max 180 Close 180 Close
mm mm
2.0 10.0
Half Hard 240 70-95 180 - 180 -
mm mm
0.5 2.0
Hard 310 70-95 180 - 180 -
mm mm
2.0 10.0
Hard 290 90min 90 - 90 -
mm mm
90min 90 - 90 -

Chemical Properties Physical Properties

No. Purity Oxygen Content. No. Temper Description. Conductivity % (20°C)
Cu PPM
C1100 0 C1100BB-0 100% (min)
C11000 99.90 (min) Upto 250 ppm
1/4H C1100BB-1/4H 95% (min)
Chamfering Radius
1/2H C1100BB-1/2H 98% (min)
Thickness Chamfering Radius
H C1100BB-H 97.16% (min)
2mm (min) / 5mm (max) 0.8

5mm (min) / 8mm (max) 1.2

8mm (min) / 30mm (max) 1.6

Copper Strips, Rods & Plates For Earthing System

Solid Copper Earth Rods

Copper Strips, Plates and Solid Rods are manufactured from highly conductive EC
Grade Copper. They offer great resistance to corrosion. They are ideally used in
applications where the salt content in the soil is very high.
Size : 16mm - 2Omm (length as per customer specifications).
Copper alloys resist many saline solutions, alkaline solutions, and organic chemicals.
However, copper is susceptible to more rapid attack in oxidizing acids, oxidizing
heavy-metal salts, sulfur, ammonia (NH3), and some sulfur and NH3 compounds.
Swaged Earth Rods (250 Microns)
Ÿ Plain Swaged Earth Rods.
Ÿ Tapered Swaged Earth Rods.
Especially developed for Australian market, available with driving head and coupling.
Driving Heads / Studs / Tips / Dowell Pins
Made from High Tensile Steel to ensure force from power hammer. Dowell Pins are
also made from High Grade Brass.
Size : 1Omm, 14mm, 5/8", 3/4" etc.
 Couplers
Material : Copper Alloy
Sizes : 14mm, 5/8", 3/4" etc.
Clamps
Material : Copper Alloy
Sizes : 14mm, 3/8", 5/8", 3/4" etc.
Air Terminal Base
Material : Body Casted from Brass
Application : Used as a base for fixing Air Terminal
Copper Bonded Earth Rods
They are manufactured from Structural Quality High Tensile Steel Grade 43A to BS 4360. These rods are molecularly bonded with
pure EC Grade Copper (99.9%).

Dimensions Rod Size (Dia x Length) Actual Rod Dia "S" Thread Dia "T” Cat No.

9.5 x 1200 (Un-Threaded) 9.5 - HBR-012

9.5 x 1800 (Un-Threaded) 9.5 - HBR-018
14 x 1200 12 14 HBR-1412
14 x 1500 12 14 HBR-1415
14 x 1800 12 14 HBR-1418
14 x 2000 12 14 HBR-1420
14 x 2400 12 14 HBR-1424
5/8 x 4' OR 16mm x 1200 14.2 5/8" HBR-112
5/8 x 5' OR 16mm x 1500 14.2 5/8" HBR-115
5/8 x 6' OR 16mm x 1800 14.2 5/8" HBR-118
5/8 x 8' OR 16mm x 2400 14.2 5/8" HBR-124
5/8 x 10' OR 16mm x 3000 14.2 5/8" HBR-130
5/8 x 4' OR 16mm x 1200 14.2 5/8" HBR-312
5/8 x 5' OR 16mm x 1500 16 5/8" HBR-315
5/8 x 6' OR 16mm x 1800 16 5/8" HBR-318
3/4 x 4' OR 19mm x 1200 17.2 5/8" HBR-212
3/4 x 5' OR 19mm x 1500 17.2 3/4" HBR-215
3/4 x 6' OR 19mm x 1800 17.2 3/4" HBR-218
3/4 x 8' OR 19mm x 2400 17.2 3/4" HBR-224
3/4 x 10' OR 19mm x 3000 17.2 3/4" HBR-230

They can be driven by power hammers to a great depth. The threads of these rods are produced by Roll Threading Process which
insures greater strength and more durability than cut thread.
Copper Bonded Earth Sheets / Lattice Copper
High Tensile Smooth Surface Steel Sheets are molecularly bonded with pure EC Grade Copper (99.9%). Ideal for Earthing Purposes.
Sizes : 1.5mm, 3mm Thickness (Length and Breadth as per customer specification)
Copper Bonded Earth Plates / Lattice Copper
Material : Copper Alloy
Application : Used for forming straight through, Tee and Cross joints.
Sizes : (Light, Medium, Heavy, Rectangular, Cross)
Metric : 16 x 3, 19 x 3, 25 x 3, 40 x 5, 50 x 6
Imperial : (Light, Medium, Heavy, Rectangular, Cross)
 Copper Rods for General Engineering & Electrical Industries

BS 2874/ 69 C 106
Near Equivalent specification (I.S. 4174/67)

Phosphorus deoxidised non arsenical Copper

Fabrication Properties Physical Properties: Chemical Requirements:

Capacity for being Temper Tensile strength Elongation % on Copper (Incl. Silver) 99.85% Min.
Cold worked Excellent Kg/mm2 Min. 5.65 A Min. Phosphorus 0.013 to 0.05%
Hot Formed Excellent Total Impurities 0.06% Max.
Suitability for Annealed 21.5 33
Brazing Good As Manufactured 23.5 13
Soldering Good
Immunity to Hydrogen
Embrittlement Excellent

Uses: House hold & General Purpose.

IS 288/ 1981
Arsenical Copper

Fabrication Properties Chemical Requirements: Physical Properties - (Annealed Condition)

Capacity for being Copper + Silver 99.2% Min. Size mm Tensile strength Elongation %
Cold worked Excellent Arsenic 0.013 to 0.05% Kg/mm2 Min. on 5.65 A Min.
Hot Formed Excellent
Suitability for 10 to 25 22.0 35
Brazing Good 25 to 50 21.0 40
Soldering Good Above 50 20.0 40
Immunity to Hydrogen
Embrittlement Excellent

Uses: Locomotive boiler stay bolts & Rivets, Plates for locomotive fire boxes etc.

Copper Rods for General Engineering & Electrical Industries

We manufacture a wide range of copper fittings that can be utilized in many applications
at home or commercial applications. These fittings are highly durable and resistant to rust.
It is also recyclable and hence does not harm the environment in any way . It is also very
compatible for carrying water, hence, ideal for fittings in plumbing.

Some of the properties of our products are as follows

Copper & Copper Alloy Products

Chemical Composition

DHP Copper DLP Copper Temper

Ÿ Phosphorus - 0.015 to 0.035% Ÿ Phosphorus - 0.05 to 0.012% H, HH, 1/4H, O (soft annealed), OL (light annealed)
Ÿ Copper - Balance Ÿ Copper - Balance

To meet global competition and international quality standards,we have established stricter quality specifications on our products.
The tubes conform to specification for Chemical composition, Temper, Tolerance and Cleanliness, meeting the stringent 'CFC Free'
(Eco-friendly) applications

Our female fittings are manufactured with parallel threads while male fittings are produced with taper threads. Listed below is the
dimensional tolerance of our fittings.
Dimension Tolerance

Nominal Diameter Tolerance on the mean Resulting diameter

diameter with respect to differece
the nominal diameter

Outside Diameter InsideDiameter

15mm 0.04 0.15 0.2 0.2
0.05 0.06
22 to 28 mm 0.05 0.18 0.24 0.02
0.06 0.07
35 to 54 mm 0.06 0.23 0.3 0.03
0.07 0.09
67 to 108 mm 0.07 0.33 0.41 0.03
0.08 0.1

Carbon in bore - The internal surface of our copper capillary fittings for soldering does not contain any detrimental film nor present
a carbon level high enough to allow the formation of such a film during installation. The maximum total carbon level on internal
surfaces do not exceed 1.0 mg/dm in accordance with specifications.

Resistance to dezincification- Our Components , which are manufactured from alloys containing more than 10% zinc(including
brass) and which are required to be resistant dezincification, shall be capable of meeting the acceptance criteria for resistance to
dezincification.

Resistance to stress corrosion- The fittings are resistant to stress corrosion. Components manufactured from alloys will show no evidence
of cracking.
Instructions for Installation of copper fittings

Step 1. Ensure that the copper tube and fitting sizes are compatible. Cut the tube end square but ensure. That the tube retains its
shape. The tube will then make even contact with the tube stop in the body of the fitting. The use of a tube cutter is recommended
where practicable.
Step 2. Remove any burrs from the tube, both inside and outside.
Step 3. Clean the socket of the fitting with a brush and the exterior of the tube with fine steel wool, fine glass paper or a cleaning
pad.
Step 4. Re-wound the tube with a re-wounding tool, if necessary, using fully annealed tube.
Step 5.Apply a flux to both the socket and the outside of the tube. If it is necessary to make the joint at one end only, insert a short
length of uncleaned tube into the ends to be left un joined and keep it cool with a wet rag while remaining joints are made.
Step 6. Insert the tube fully into the fitting. (In the case of slip fittings, ensure that the tube enters the socket to the appropriate
distance) rotate the tube or fitting and remove excess flux where possible
Step 7. Apply heat with a low temperature torch, evenly heating both tube and socket until a complete ring of solder appears at
the mouth of the fitting. Do not apply excessive heat or additional solder.
Step 8. Allow the joint to cool, ensuring that no movements occurs.
Step 9. Wipe the joint with a damp cloth to remove flux residues and thoroughly clean joint.
Step 10. Flush all residues out of the system, as soon as possible.

Copper Rods for General Engineering & Electrical Industries

We also manufacture Fin Tubes that includes copper fin tube and copper alloy fin tube,
these in comparison to plain tubes increases the surface area of the tube and improves
the heat transfer efficiency. We have the skill & necessary knowhow for the production
of integrated fin tubes & can manufacture the same as per your requirements.
STAR Fined Tubes
STAR Type 1
a) S/T is an integral extended surface tube having helical fins (19,26,40 on the outside & designed primarily for Shell & Tube Heat
exchanger application, to increase efficiency & reduce cost.
b) Duplex Type S/T Trufin: This is available in a variety of combinations like (Copper finned tube over a steel liner, Admiralty finned
tube over cupro-nickel liner, Aluminum finned tube over an Admiralty liner etc.

STAR Type 2

a) S/T Turbo-Chill : Is an integral extended surface tube having helical fins (19,26,40) on the outside & integral helical ridges on the
inside to improve turbulation, thus giving more balance outside to inside coefficient ratio & designed for shell & tube heat exchanger
application such as boiling & condensing of hydrocarbons.

STAR Type 3
a) H/F Trufin : Is an integral extended surface tube having helical fins on the outside & designed primarily for application, which require
a high outside to inside surface area ratio such as heating or cooling gases.

STAR Type 4

a) L/C Turfin : Is a bimetallic extended surface tube with high integral fins, for light weight & economy, finned on prime surface or
liner tube chosen for resistance to a specific corrosion environment. It has a high outside to inside surface area ratio for heating or
cooling gases. L/C Turfin is available in any combinations & in four types spirally wounded fin tubes :
1) Plain type,
2) Crimped type,
3) 'L' type,
4) Wire wounded

Finned Tubes -Intergroove Integrally Finned Tubes

No. of starts Triple start

No. of fins/ inch 19 & 26

Type of fin Low & high

Placement of fins OD or ID or OD + ID

Dia 19.05mm & 15.77mm

Wall 16SW, 17SWG, 17.5SWG & 18SWG

Length 6 MTRS

Lands As per customer needs