Copper, also known as red copper, is a simple substance of copper and is named after its purple-red color. Various properties are shown in copper. It is made of industrial pure copper, with a melting point of 1083°C, no allotropic transformation, and a relative density of 8.9, which is five times that of magnesium. The mass of steel of the same volume is about 15% heavier than ordinary steel.
Because the color of copper is rose red and turns purple after an oxide film is formed on the surface, it is usually called copper. Copper is copper containing a certain amount of oxygen, so it is also called oxygen-containing copper.
Flavonoid is an alloy composed of copper and zinc. Brass composed of copper and zinc is called ordinary brass. If the alloy contains more than two elements, it is called special brass. Brass has strong wear resistance and is often used in the manufacture of valves, water pipes, air conditioner internal and external machine fittings and radiators.
1. Definition difference: Brass, by definition, is an alloy of copper and zinc. If it is just ordinary brass composed of these two components, but if it is composed of these two elements, it is special. brass. Copper is a relatively pure copper. Because the color of copper is purple-red, it is also called red copper.
2. Difference in appearance color: When we observe copper and brass, we will find that the color of brass is generally golden yellow and relatively shiny, but the color of copper is rose red and also shiny, so we can judge from their appearance color. distinguish.
3. Differences: The main component of red copper is copper, and the copper content can be as high as 99.9%. However, the components of brass are copper and zinc. The more special brass may have other magazines, so it can also be very different from the composition. Good to distinguish.
4. Difference in strength: The strength of red copper and brass is different. We can distinguish it from the strength. Brass has more ingredients, so the strength of brass is generally higher. However, the main ingredient of red copper is copper, but the main ingredient of red copper is copper. The component is copper and there are basically no impurities, so the strength of red copper is relatively low.
5. Density difference: The density of brass is 8.52-8.62, and the density of red copper is 8.9-8.95. Therefore, the density of red copper and brass is relatively large, and the density of brass is small.
6. Difference in conductivity: Since both copper and brass contain copper, both copper and brass can conduct electricity. However, the components of copper and brass are also different, so the conductivities of copper and brass are different. Brass The composition of red copper is mainly copper, so the conductivity of red copper is relatively low.
7. The difference between corrosion resistance and cutting performance: Brass has slightly worse corrosion resistance but better cutting performance; copper has better corrosion resistance but worse cutting performance.
