Copper performance: ordinary performance

Copper is a relatively pure copper, generally can be approximately considered to be pure copper, electrical conductivity, plasticity are better, but the strength, hardness is worse. Red copper has excellent thermal conductivity, ductility and corrosion resistance. Trace impurities in red copper have serious influence on the conductivity and thermal conductivity of copper. Among them, titanium, phosphorus, iron and silicon significantly reduce the electrical conductivity, while cadmium and zinc have little effect. The solid solubility of sulfur, selenium and tellurium in copper is very small, and they can form brittle compounds with copper, which have little effect on electrical conductivity, but can reduce machining plasticity.

Copper in the atmosphere, sea water and some non-oxidizing acids (hydrochloric acid, dilute sulfuric acid), alkali, salt solution and a variety of organic acids (acetic acid, citric acid), has good corrosion resistance, used in chemical industry. In addition, red copper has good weldability, can be made into a variety of semi-finished products and finished products by cold and thermoplastic processing. In the 1970s, the production of red copper surpassed the total production of all other copper alloys.

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