Which hardness is higher, brass or copper?

Views: 5     Author: Site Editor     Publish Time: 2022-01-10      Origin: Site

Copper has good electrical conductivity, thermal conductivity and ductility, etc., and is widely used in cables, electrical and electronic components, because it has a low melting point, is easy to remelt and resmelt, and is also a relatively environmentally friendly material.Among them, brass and copper are the most widely used. Many companies do not know which hardness is higher, brass or copper, which leads to mistakes during production. The following technicians will introduce which hardness is higher, brass or copper?

What is copper?

Red copper is named for its purplish red color. It is a relatively pure copper. It is not necessarily pure copper. Generally, it can be approximated as pure copper. It has better conductivity and plasticity, but weaker strength and hardness.

What is brass?

Brass is an alloy composed of copper and zinc. Brass composed of copper and zinc is called ordinary brass. If it is composed of two or more elements, it is called special brass. Brass is Copper-zinc alloy, excellent plasticity, high strength, good corrosion resistance.

Which hardness is higher, brass or copper?

1. The general characteristic of metal materials is that the hardness of pure metals is lower than that of its alloys, and its alloys have high hardness and low melting point.Both oxygen-free copper and red copper are pure copper, but the purity is different. The purity of oxygen-free copper is higher, and the purity of red copper can reach 99.9%.~99.99% (different brands have some differences) red copper contains very few impurities, so oxygen-free copper is high in purity and soft, red copper is slightly harder (close to oxygen-free copper), and brass is hard.

2. There is another characteristic of copper materials. The hardness will become soft after heat treatment, and it will become hard after cold working (cold work hardening). Due to the influence of the hardness and composition, grade, and impurities of non-ferrous metals and alloys, and the state, crystal The lattice structure has a lot to do with it, so there are generally few specific hardness data, which can only be described qualitatively.

3. What is the hardness of red copper? Red copper has a density (7.83g/cm3), a melting point of 1083 degrees, and a copper content of 99.9%. It is non-magnetic. It has good electrical conductivity, thermal conductivity and corrosion resistance. It is named after red. The electrical conductivity and thermal conductivity of copper are second only to silver, and it is widely used in the production of electrical and thermal equipment. Copper is in the atmosphere, sea water and some non-oxidizing acids, alkalis, salt solutions and various organic acids , has good corrosion resistance and is used in the chemical industry.

4. The density of brass (8.93g/ cm3) is mostly used as lining of mechanical bearings, wear-resistant, brass 'density is greater than that of copper' copper-based alloy with zinc as the main alloying element, copper is about 60%; zinc is 40% %; individual grades contain about 1% lead, which is impurity.It is named because it is often yellow. Brass has beautiful color, good process and mechanical properties, certain corrosion resistance, and lower electrical conductivity than copper.

Which hardness is higher, brass or red copper, I believe everyone knows through the above introduction. Of course, red copper is more preferable when making wires and cables. Its conductive resistance is small and it is more suitable as a conductor. Its hardness is lower than that of brass, making wires and cables softer. It is easier to operate during use, and at the same time there are fewer impurities, which increases the conductivity of red copper.

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