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Copper has the chemical symbol in the Periodic Table – Cu – and is one of the oldest metals known to man, as confirmed by archaeological research. Probably as early as 4,000 BC, small everyday objects and ornaments were made from copper on the Sinai Peninsula, in the Mediterranean countries and in eastern Mesopotamia. Copper pipes were used in Egypt to transport drinking water.
Along with silver and gold, copper is included in the copper group. It is a semi-precious metal with malleable properties. It is soft, malleable and has a characteristic reddish color. It has tensile strength, conducts electricity and heat, and melts at very high temperatures, over 1,000 degrees Celsius. Copper ores are processed using pyrometallurgical and hydrometallurgical methods, for suitable raw materials for copper products.
The price of copper is higher than that of steel, but it finds widespread use in the manufacture of electrical, telecommunications, water, heating, central heating, or in the form of roofing and building hardware, among others. Copper is often used in the manufacture of electrical circuits and parts or apparatus for the chemical and food industries.
E-Invest offers its customers various copper products, including copper wires, copper pipes, copper rods and others.
| Type | Diameter | Dimensions | Grade |
|---|---|---|---|
| COPPER WIRES | 0.6 – 1 mm | spools | M1E |
| 0.5 – 3mm | spools | M1E | |
| COPPER RODS |  | 6 – 120 mm | M1E, MHY |
 | 6-130mm | M1E, MHY | |
 | 15×3 – 120×10 mm | M1E | |
 | 8-60mm | M1E, MHY | |
| COPPER PIPE |  | 5 – 170 mm | M1E, M2R, SF-CU, M1R |
 | 5×0.8 – 35×1.5 | Cu- DHP, SFCU, M1E | |
| Type | Thickness | Dimensions | Grade |
| COPPER STRIP | 0.15 – 0.55 mm | Width: 300 – 670 mm | M1E, M2G |
| 0.1mm-3mm | Width: 0mm x 550mm | E-Cu, SF-Cu | |
| COPPER SHEETS | 0.8 – 30mm | 600-700 x 2000mm | M1E |
| 0,3mm- 150mm | 300×650 – 1000×3000 | E-Cu, SE-CU, SF-Cu | |
| COPPER FLAT BARS | 10×4 – 200×30 | M1E | |
| COPPER ANODES | 10x200x600 | M1R |
| Mark | Marking according to selected standards | Indicative characteristics | ||||
|---|---|---|---|---|---|---|
| PN-91/H87026 | EN 1982 | DIN 17656 | ASTM B30 | BS 1400:1985 | ||
| CuSn- | ||||||
| CuSn10 | B10 | CuSn10-B CB480K | GB-CuSn10 2.1051 | C90700 | – | Resistant to high static impact loads, corrosion and temperatures up to 280oC, leamability and machinability good. |
| CuSn10P | B101 | CuSn11P-B CB481K | – | – | PB1 | Resistant to corrosion, abrasion, and high mechanical loads; lexibility and machinability very good. |
| CuSn10Zn2 | B102 | – | GB-Rg10 2.1087 | C90500 | G1 | Resistant to seawater corrosion, abrasion and pressure; leamability and machinability very good. |
| CuSn10Pb10 | B1010 | CuSn10Pb10-B CB496K | GB-CuPb10Sn 2.1177 | C93700 | LB2 | Resistant to abrasion; leamability and machinability very good. |
| CuSn4Zn7Pb6 | B476 | – | – | C83800 | LG1 | Material resistant to seawater, heat resistant up to 225oC; leamability and machinability very good. |
| CuSn5Zn5Pb5 | B555 | CuSn5Zn5Pb5-B CB491K | GB-Rg5 2.1097 | C83600 | LG2 | |
| CuAl- | ||||||
| CuAl10Fe | BA93 | – | GB-CuAl10Fe 2.0941 | C95200 | AB1 | For castings to be welded Pb not more than 0.03%.Structural material.Low temperature sensitivity from -200oCto +200oC. Good corrosion and wear resistance. Very resistant to static loads, corrosion, abrasion and elevated temperatures; leamability very good. Density ~ 7.5 g/cm3. |
| CuAl10FeMn2 | BA1032 | – | – | – | – | Very resistant to static loads, corrosion, abrasion and elevated temperatures; leamability very good. |
| CuAl10Fe4Ni4 | BA1044 | CuAl10Fe5Ni5-B CB333G | GB-CuAl10Ni 2.0976 | C95500 C95800 | AB2 | Structural material with high mechanical properties. Good corrosion and oxidation resistance. Density ~7.5 g/cm3. |
| CuSi- | ||||||
| CuSi3Zn3Mn1 | BK 331 | – | – | – | – | Resistant to corrosion, alternating loads, impact and abrasion; leamability good. |
| CuNi- | ||||||
| CuNi16Al9Zn9 | – | – | – | – | – | Resistant to thermal shock.Good thermal conductivity. Very good flowability and machinability. Weldable. Density approx. 8.2 g/cm3 |
| CuZn- | ||||||
| CuZn39Pb2 | MO59 | – | – | – | – | Resistant to low dynamic loads and abrasion; lexibility and machinability very good. |
| GB-CuZn37PbMs60 | – | CuZn39Pb1Al-B CB754S | GB-CuZn37Pb 2.0342 | – | DCB3 | Contains lead addition to improve machinability. Tin is added to improve corrosion resistance. Aluminum forms an oxide protective layer that keeps the molten metal clean and reduces particle attack from the die material. |
| GB-CuZn38AlMs63 | – | – | GB-CuZn38Al 2.0601 | – | DCB1 | Constructive material with good flowability, cold ductility, resistant to atmospheric corrosion with electrical conductivity of about 12m/(? x mm2). |
| CuZn40Mn3Fe1 | MM55 | – | – | – | – | Resistant to wall, moderately resistant to corrosion and cavitation and elevated temperatures up to 250oC; leamability sufficient. |
| CuZn38Al2Mn1Fe | MA58 | – | GB-CuZn34Al2 2.0602 | – | – | Resistant to abrasion, corrosion and static loads; leamability and machinability very good. |
| CuZn35Al5 | – | CuZn35Mn2Al1Fe-B CB765S | GB-CuZn25Al5 2.0608 | C86400 | HTB1 | General technical castings. Good corrosion resistance. Density of 8.6 g/cm3. |
| CuZn25Al5 | – | CuZn25Al5Mn4Fe3-B CB762S | GB-CuZn25Al5 2.0608 | – | HTB3 | High resistance to stress and corrosion. Structural material with very high static load capacity. |
| CuZn16Si3.5 | MK80 | CuZn16Si4-B CB761S | GB-CuZn15Si4 2.0493 | C87400 | – | Resistant to corrosion of seawater, abrasion and temperature up to 100oC, weldable, fungibility and machinability good. |
| 1 in addition to those listed in the table, we can make alloys of any chemical composition at the request of the customer 2 in the case of using alloys according to PN as substitutes for grades according to foreign standards, it is necessary to compare chemical composition and mechanical properties | ||||||
