Copper

KMZ sells copper at affordable prices from the manufacturer in any form and quantity. The supplier guarantees the timely delivery of products to any address specified by the consumer.

Characteristic of copper

Copper is one of the oldest metals used by mankind. Copper mining and smelting were commonplace by 4500 BC. in the Balkans — Bulgaria, Greece, Serbia and Turkey.

Copper is a reddish-orange, soft metal that has a bright metallic luster. It is malleable, ductile and is an excellent conductor of heat and electricity — only silver has a higher electrical conductivity than copper.

Copper is important for all plants and animals. However, excess copper is toxic.

The preparation of sour food in copper containers can cause disease.

Copper surfaces exposed to air gradually fade to a dull, brownish color. With constant and prolonged contact with moist air, copper will slowly corrode to form carbonate compounds of green color, in which copper sulfate is present.

Basic physical and mechanical properties of copper are given below:

Density, kg / m ³ — 8890;

Melting point, ⁰ С — 1083;

Thermal conductivity in the temperature range 20… 300 ⁰ С, W / mgrad — 390;

Coefficient of linear expansion, μm / degree — 16,8;

Specific heat capacity, J / kggrad — 0,375;

The limit of time resistance, MPa — 190… 360 (for annealed and cold worked copper, respectively);

Limit of plasticity, MPa — 70… 300 (for annealed and cold worked copper, respectively);

Relative elongation,% — 60… 6 (for annealed and cold worked copper, respectively);

Hardness in Brinell, HB, not more than 45… 110 (for annealed and cold worked copper, respectively);

Modulus of elasticity, GPa — 117… 135 (for annealed and cold worked copper, respectively).

Buy copper in the range offers KMZ. Prices are from the manufacturer. The supplier ensures guaranteed delivery of the metal to any point. marked by the client.

The world trend of copper prices

Prices for copper at the end of this year increased, given the difficulties with mining this metal, which arose in the Chilean mines (Chile — the world’s main copper producer), as well as in Indonesia.

According to the MarketWatch report, copper prices rose 1.12% to $ 5.688 per metric ton on the London Metal Exchange. In China, the latest data on imports show that imports of various grades of copper increased by 8.5% compared to the previous month. For the world copper market, this increase is quite substantial and helps to restore prices after the fall in the last few weeks. Currently, copper prices directly depend on China’s demand, as well as uncertainty in supply. This downward trend in prices can only be a small pause in a dynamic market.

KMZ offers to buy at affordable prices from the manufacturer rolled from copper — sheets, bars, wire, pipes or foil. The supplier makes prompt delivery of products to any point agreed by the customer.