History of copper. Physical and mechanical properties.
Are you interested in the history of copper, physical and mechanical properties? Supplier Evek GmbH offers to buy copper rolled products at an affordable price in a wide range. We will ensure the delivery of products to any point of the continent. The price is optimal.
Copper was first obtained from sulfur pyrite mined in the ancient Greek mines in Cyprus, which is why it received its Latin name Cuprum. By its prevalence, this metal is not the leader on the planet, occupying only 23rd place, but the long period of its practical use by man, as well as a number of useful properties, have led to widespread use of this metal, especially in the electrical industry.
The brands M0 and M1
In accordance with GOST 869, copper wire is produced in two grades — M0 and M1. Mandatory components of the metal are such chemical elements as bismuth, tin, arsenic, iron, nickel, lead, tin and zinc, as well as sulfur and oxygen. The total number of impurities in the M0 mark should not exceed 0.05%, and in M1 — 0.1%.
Basic physical properties
- Melting point, ° C — 1084;
- Density at room temperature, g / cm 3 — 8.89;
- Thermal conductivity, W / kgK — 385;
- Specific electrical resistance, μΩ / m — 0,01724;
Copper refers to the number of corrosion-inactive metals, reacting in a humid atmosphere only with particularly strong oxidants: for example, the metal dissolves in concentrated nitric acid. Supplier Evek GmbH offers to buy copper rental of domestic and foreign production at an affordable price in a wide range. We will ensure the delivery of products to any point of the continent. The price is optimal.
Copper rolling is well processed mechanically. However, the viscosity and ductility of copper causes the metal of the workpiece to adhere to the cutting tool. During plastic deformation, the metal is intensively hardened, which results in a decrease in the relative elongation of copper by half when the metal reaches critical deformation levels.
|Index||deformed copper||annealed copper|
|Limit of time resistance, MPa||340… 450||250… 280|
|Relative narrowing of the cross-section,%||40… 60||65… 85|
|Relative elongation at tension,%||4… 6||45… 60|
|Brinell hardness, HB||90… 115||40… 55|
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Are you interested in the history of copper, physical and mechanical properties? Supplier Evek GmbH offers to buy copper alloys at the manufacturer’s price. We will ensure the delivery of products to any point of the continent. The price is optimal. We invite you to partner cooperation.