1, the difference in appearance
The color of copper is rose red, and the color of brass is generally golden yellow.
2. Differences in composition
The composition of red copper is mainly copper, and the composition of brass is copper and zinc.
3. Differences in strength
The composition of copper is mainly copper, and there are basically no other impurities, so the strength of copper is relatively low, and there are many components of brass, so the strength of brass is generally higher.
4. Density difference
The density of copper is 8.9-8.95 and that of brass is 8.52-8.62.
5. Expansibility
The ductility of copper is better, but that of brass is worse than that of copper.
6. Corrosion resistance
Copper has better corrosion resistance than brass.
7. Conductivity
Copper has conductivity, while brass has lower conductivity.
8, cutting performance
Copper has poor machinability, while brass has good machinability.
Copper is a kind of purple and lustrous metal. It is called copper because it is rose red and purple after the oxide film is formed on the surface. Brass is an alloy of zinc and copper. Generally, brass composed of zinc and copper is called ordinary brass, and brass composed of more than two elements is called special brass.