Among the materials of sheet metal processing, copper has many outstanding physical and chemical properties. For example, its thermal conductivity and conductivity are very high, its conductivity is second only to silver, and its thermal conductivity is second only to silver and gold. Chemical stability is strong, easy to dissolve, in the atmosphere, fresh water, sea water has a good corrosion resistance.
Copper zinc alloy, the color changes from yellow red to yellow with the increase of zinc content. The mechanical properties of brass are higher than that of pure copper, and it will not rust or be corroded under the same conditions. It has good plasticity and is widely used in the mechanical manufacturing industry to make various structural parts.
Moreover, it has high plasticity and can bear all kinds of cold and hot pressure sheet metal processing well. The disadvantage is that the strength and hardness are low. Generally, it does not make structural parts. Pure copper is also known as red copper, which is light rose or light red. After the copper oxide film is formed on the surface, its appearance is purple red
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