Copper, as an ancient metal material, has played an indispensable role in tool making, architectural decoration, artistic creation and many other fields since the beginning of human civilization.
With the progress of science and technology and the development of society, people have not only mastered how to refine high-purity copper, but also learned to improve and expand the performance of copper through the alloying method, brass is one of the most well-known copper alloys.
Today, we will talk about the difference between brass and pure copper, and their respective applications!
What is pure copper? Pure copper is usually also called purple copper, purple copper is generally more than 99%, more pure electrolytic copper or oxygen-free copper, refers to the copper content of 99.9% or more copper.
Pure copper has good electrical and thermal conductivity, and is widely used as the core material for wires and cables in electrical engineering; at the same time, due to its excellent ductility and processability, pure copper is also ideal for making various precision parts.
In addition, pure copper has good corrosion resistance, especially in freshwater environments, and is therefore commonly used in areas such as piping systems and marine equipment.
In terms of artistic creation, pure copper can be forged into exquisite sculptures or cast into large objects such as bells and tripods, showing a high aesthetic value.
What is brass? Brass is a binary alloy composed of copper and zinc. According to the different zinc content, brass can be divided into common brass (such as H62, H68) and special brass (such as lead brass, aluminum brass).
Generally speaking, when the proportion of zinc increases, the color of brass will gradually become lighter, and the hardness will also increase, but the plasticity will decrease accordingly. Compared with pure copper, brass has better strength and wear resistance, which makes it widely used in the mechanical manufacturing industry, such as brass gears, bearings and other parts can withstand higher pressure without deformation or wear.
In addition, due to the brass surface is easy to form a layer of dense oxide film, which improves the corrosion resistance, especially in the air is not easy to erosion, so it is also used in a large number of ornaments, musical instrument shells and so on.
