COPTECH doo - products

Applications

Copper is one of a few elements that are essential for life. It is a part of a number of biological molecules. For example, some enzymes that are involved in respiration contain copper. Copper is both good and bad for living things. At very low concentrations, it is useful. But when the concentration increases, it becomes toxic and interferes with cell metabolism.

Copper is a reddish-colored metal, with a high electrical and thermal conductivity (silver is the only pure metal to have a higher electrical conductivity at room temperature). Pure copper's melting point is 1,981ºF (1,083ºC). The purity of copper is expressed as 4N for 99.99% pure or 7N for 99.99999% pure. The numeral gives the number of nines after the decimal point when expressed as a decimal (e.g. 4N means 0.9999, or 99.99%).

Copper is malleable and ductile, a good conductor of heat and, when very pure, a good conductor of electricity.

Native copper specimen (~ 4 cm in size) Property of http://en.wikipedia.org

As the world moves into the new millennium, the need for copper is growing, rather than shrinking. Computers, like other electronics, require copper. As it was at the dawn of civilization, copper will continue to be crucial to the world's economy.

Copper Uses Today

Copper is a critical component of modern industry. In the United States, the most important use of copper is in electrical wiring. A breakdown below gives the percentage of copper used in the United States by industry:

Building Wire. . . . . . . . . . . . . . . . . . . . . 16%
Plumbing & Heating . . . . . . . . . . . . . . . . . . 14%
Automotive . . . . . . . . . . . . . . . . . . . . . . 11%
Electric Utilities . . . . . . . . . . . . . . . . . . .9%
Air Conditioning & Commercial Refrigeration. . . . . . .8%
Telecommunications . . . . . . . . . . . . . . . . . . .7%
Factory Equipment. . . . . . . . . . . . . . . . . . . .6%
Electronics. . . . . . . . . . . . . . . . . . . . . . .6%
Appliances & Extension Cords . . . . . . . . . . . . . .3%
Other. . . . . . . . . . . . . . . . . . . . . . . . . 20%
TOTAL-----------------------------------------------> 100%

It is used extensively, in products such as:

Piping and tubing

Copper is used for water pipes and central heating systems (tanks and pipes). This is because it doesn't corrode and its ductility makes it easy to shape and install. It also protects against the growth of unwanted, pathogenic bacteria such as legionella, which thrive in stagnant water storage units.
Due to their physical and mechanical properties (plasticity, flexibility, high thermal conductivity, pressure resistance) that do not change in time, copper tubes are widely applied:
- ● water supply installations,
- ● gas and heating systems,
- ● fire protection systems,
- ● cooling facilities and appliances,
- ● various branches of industry (shipbuilding, production of machinery, chemical and food industry).
- Copper tubes were used in the time of the Roman Empire. Even nowadays it is possible to see the remnants of copper water supply systems in the archaeological site in Herculaneum (that was destroyed after eruption of Vesuvius in 79 A.C.).

Copper piping system with intumescent firestop being installed by an insulator in Vancouver, Canada.

Property of http://en.wikipedia.org

Electronics

Copper wire.
Electromagnets.
Printed circuit boards.
Lead free solder, alloyed with tin.
Electrical machines, especially electromagnetic motors, generators and transformers.
Electrical relays, electrical busbars and electrical switches.
Vacuum tubes, cathode ray tubes, and the magnetrons in microwave ovens.
Wave guides for microwave radiation.
Integrated circuits, increasingly replacing aluminium because of its superior electrical conductivity.
As a material in the manufacture of computer heat sinks, as a result of its superior heat dissipation capacity to aluminium.

Structural Engineering

Copper has been used as water-proof roofing material since ancient times, giving many old buildings their greenish roofs and domes. Initially copper oxide forms, replaced by cuprous and cupric sulphide, and finally by copper sulphate. The final sulphate patina is highly resistant to corrosion.^[4]
Statuary: The Statue of Liberty, for example, contains 179,220 pounds (81.3 tones) of copper.
Alloyed with nickel, e.g. cupronickel and Monel, used as corrosive assistant materials in shipbuilding.
Watt's steam engine.

Household Products

Copper plumbing fittings and compression tubes.
Doorknobs and other fixtures in houses.
Roofing, guttering, and rainspouts on buildings.
In cookware, such as frying pans.
Most flatware (knives, forks, spoons) contains some copper (nickel silver).
Sterling silver, if it is to be used in dinnerware, must contain a few percent copper.
Copper water heating cylinders

Coinage

As a component of coins, often as cupronickel alloy.
Coins in the following countries all contain copper: European Union (Euro), United States, United Kingdom (sterling), Australia and New Zealand. Ironically, U.S. Nickels are 75.0% copper by weight and only 25.0% nickel.
Chemical applications
- Compounds, such as Fehling's solution, have applications in chemistry. As a component in ceramic glazes, and to colour glass. Copper is also useful as a biocide. This is something we can use to control pests. For plants, it is most often used to remove fungi that grow on the leaves. It can also be used to destroy bacteria and insects that damage farmers' crops. In France, they use it on vines that produce grapes for wine.

From 1970s till this days

The use of copper is increasing. In the 1970s, a 1,500 square-foot house used about 280 pounds of copper. Today, a 2,200 square-foot house uses about 450 pounds of copper.

A car in the 1970s used about 35 pounds of copper. Now, 50 to 80 pounds of copper will go into one automobile.

A Boeing 727 airplane uses 9,000 pounds of copper.

Source: http://www.copper.org

http://en.wikipedia.org

http://resources.schoolscience.co.uk

http://www.unr.edu

In our offer we have:

● Soft copper tubes

● Half - hard copper tubes

● Hard copper tubes

● PVC coated copper tubes

● Copper tubes for LPG vehicles