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Guide to Material Selection
Copper (SF-CU) C-106
Widely used in marine & industrial units, sanitary &
heating application, medical gas pipelines etc. In addition to round
tubes and copper pipes, copper can also be offered in integrally
finned and corrugated rope sections. Good resistance to corrosion in
fresh water. Working temperature up to 250 deg.C, cooling water
speed 1.5 m/s.
Brass (CuZn30As) CZ-126Brass in the form of brass pipes and
tubes gives good service with clean mains, river and lake water here
more expensive alloys are not warranted due to lack of server
corrosion conditions.
Admiralty Brass (CuZn28SNI) Cz111
Will operate successfully in steam condensers and coolers for land
stations where the river waters are brackish and conditions are
slightly acidic or alkaline. Also resistant to sulphur bearing
gases. Cooling water speed 2.0 m/s temperature up to about 200 deg.C
Aluminum Brass (CuZn20A1.2) Cz110
Extensively used material and one of the most popular. This alloy
forms a protective film which has self healing properties. This film
is dependant on oxygen dissolved in the water and will not renew
itself in polluted or stagnant water. High resistance to corrosion
in clean seawater or where land conditions are difficult. Cooling
water speed approx. 2.5 m/s working temperature up to 250 deg.C
Cupro Nickel Alloy (CuNi 10 FE 1 Mn) Cn102
Widely used in condensers, coolers and heat exchangers where
corrosion resistance and erosion is paramount, yet maintaining a
high thermal conductivity rate. To be used preferably in marine
conditions. Forms a protective film which is multi layered in
flowing sea water. Resist marine bifouling. Cooling water speed 2.5
m/s working temperature approx. 250 deg.C
Cupro Nickel Alloy (CuNi 30 Mn 1 FE) Cn107
Improved corrosion resistance and almost insensitive to stress
corrosion this alloy will give superior result in high velocity
polluted water including sea water. A reduced thermal conductivity
level but will retain its strength at moderately increased
temperatures. Cooling water speed up to 4.5 m/s.
Manufacturing Range
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Melting |
Heating |
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Extrusion |
Drawing |
Tubes :-
| Outside Diameter |
3.0mm (min) - 159mm (max) |
| Wall thickness |
0.3mm (min), Subject to OD |
| Length |
28,000mm (max), Subject to OD & WT |
Strips / Bus bar :-
| Width |
10mm - 250mm |
| Wall thickness |
1mm (min.) |
| Length |
Straight & Coil form |
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