Native copper is found at many locations as a primary mineral in basaltic lavas and also as reduced from copper compounds, such as sulfides, arsenides, chlorides, and carbonates. (For mineralogical properties of copper, see the table of native elements.) Copper occurs combined in many minerals, such as chalcocite, chalcopyrite, bornite, cuprite, malachite, and azurite. It is present in the ashes of seaweeds, in many sea corals, in the human liver, and in many mollusks and arthropods. Copper plays the same role of oxygen transport in the hemocyanin of blue-blooded mollusks and crustaceans as iron does in the hemoglobin of red-blooded animals. The copper present in humans as a trace element helps catalyze hemoglobin formation. A porphyry copper deposit in the Andes Mountains of Chile is the greatest known deposit of the mineral. By the early 21st century Chile had become the world’s leading producer of copper. Other major producers include Peru, China, United States and mainly Africa.

Our Copper is commercially produced mainly by smelting or leaching, usually followed by electrode position from sulfate solutions. For a detailed treatment of the production of copper, see our copper processing. The major portion of the copper we produce is used by electrical industries; most of the remainder is combined with other metals to form alloys. (our copper is also technologically important as an electroplated coating.) Important series of alloys in which copper is the chief constituent are brasses (copper and zinc), bronzes (copper and tin), and nickel silvers (copper, zinc, and nickel, no silver). There are many useful alloys of  our copper and nickel, including Monel; the two metals are completely miscible.Our  Copper also forms an important series of alloys with aluminum, called aluminum bronzes. Beryllium copper (2 percent Be) is an unusual copper alloy in that it can be hardened by heat treatment. Our Copper is a part of many coinage metals. Long after the Bronze Age passed into the Iron Age, copper remained the metal second in use and importance to iron. By the 1960s, however, cheaper and much more plentiful aluminum had moved into second place in world production.

BUY COPPER CATHODE FROM US 

1. SPECIFICATIONS

Product: Copper Cathodes Grade A (Electrolytic Copper Grade)
(LME standards) Standard Cu Cathode-1, purity 99.99%

Dimension: 914mm x 914mm x 12mm (LME standards)
Weight of each sheet: 125kgs (+/- 1%)
Net weight of each pallet: 2mts (+/- 1%)
Min. weight in each container: 20mts approx.
Gross weight of each container: 22.20mts approx.
Packing: palletized banded by aluminum bands

2. CHEMICAL COMPOSITION

Copper (Cu) : min% 99.99%
Other materials may be present which are described below:
Oxygen O2 —
Sulfur S:………………………… 4 PPM
Iron Fe:…………………………2 PPM
Silver(Argent) Ag::…………………………10 PPM
Lead Pb:…………………………0.2 PPM
Nickel Ni:…………………………0.2 PPM
Selenium Se:…………………………0.3 PPM
Antimony Sb:…………………………0.1 PPM
Silica Si:…………………………0.3 PPM
Cobalt Co:…………………………0.2 PPM
Arsenic As:…………………………0.1 PPM
Bismuth Bi:…………………………0.1 PPM
Manganese Mn:…………………………0.1 PPM
Tellurium Te:………………………… 0.05 PPM
Aluminum Al:………………………… 0.5 PPM
Magnesium Mg:………………………… 0.4 PPM
Zinc Zn:………………………… 0.4 PPM

COPPER SCRAP FOR SALE

Chemical Composition (%):

Copper Scrap Cu:≥ Bi:≤ Sb:≤ As:≤ Fe:≤ Ni:≤ Pb:≤ Sn:≤ S:≤ O:≤ Zn:≤ P:≤
99.95 0.002 0.002 0.002 0.005 0.002 0.005 0.002 0.005 0.002 0.005 0.001

Shape: Strip and foil