What's the difference between copper and brass?

Red copper is different from brass

Red copper is pure copper, also known as red copper. The color of pure copper is orange or rose red, but it will be oxidized to purple when exposed to air, so it is called red copper.

Copper it is not necessarily pure copper, sometimes also added a small amount of deoxidized elements or other elements, to improve the material and performance, so it is also included in copper alloy. Chinese copper processing materials can be divided into four categories according to composition: ordinary copper (T1, T2, T3, T4), oxygen free copper (TU1, TU2 and high purity, vacuum oxygen free copper), deoxidized copper (TUP, TUMn), special copper with a small amount of alloying elements (arsenic copper, tellurium copper, silver copper).

Red copper electrical conductivity and thermal conductivity second only to silver, widely used in the production of electrical and thermal conductive equipment. 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, copper has good weldability, can be cold, thermoplastic processing into a variety of semi-finished products and finished products. In the 1970s, the production of red copper exceeded the total production of all other copper alloys.

A copper-based alloy with zinc as its main alloying element, named for its often yellow color. Brass color is beautiful, has good process and mechanical properties, high electrical and thermal conductivity, corrosion resistance in air, fresh water and sea water, easy cutting and polishing, good welding and cheap. It is widely used in making conductive and thermal components, corrosion resistant structural parts, elastic components, daily hardware and decorative materials, etc.

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