Copper properties
|
SPECIFIC GRAVITY |
gr/cm3 |
8.9 |
|
MELTING POINT |
°C |
1,083 |
|
LINEAR EXPANSION COEFFICIENT |
||
|
(10-100°C) (20-300°C) |
10-6/k 10-6/k |
16,8 17,7 |
|
ELECTRICAL CONDUCTIVITY IN 20°C |
m/Ω·mm2 |
≅ 48 |
|
SPECIFIC HEAT IN 20°C |
j/Kg.k |
385 |
|
THERMAL CONDUCTIVITY |
w/m.k |
≅ 320 |
Thermal conductivity
opper has a thermal conductivity of 398 W / mk which is much higher than the other materials used in this application. This makes it an ideal material for use in underfloor heating.
The capacity, leading to better overall heat exchange, which has the effect of reducing the length of the network, the possibility of using smaller
diameters and the functionality of the system with a lower water temperature.
Longevity
Copper is a proven and reliable hardware in building networks.
The great strength of time guarantees a lifetime without comparison facility.
Antioxidant Properties
The antioxidant capacity of copper protects plants from blockages caused by deposition oxygen network.
Additionally, antivaktirioktones properties limit the risk of clogging of organic origin. This implies a longer life of the plant, especially the boiler, and a reduction in maintenance costs: no needregular cleaning of the installation or use of corrosion inhibitors and antioxidants.
|
metallurgical condition |
Nominal Outside Diameter |
resistance |
elongation minimum |
||
|
ΕΛΟΤ ΕΝ 1173 characterization |
usual |
minimum |
maximum |
||
|
R220 |
annealed |
6 |
54 |
220 |
40 |
|
R250 |
medium-hard |
6 |
66.7 |
250 |
30 |
|
6 |
159 |
30 |
|||
|
R290 |
hard |
6 |
267 |
290 |
3 |
Coefficient of expansion
The expansion coefficient of copper is identical to that of the concrete, thus abuts fully uncovered in the concrete the succeeding
better heat transfer than other materials.
