How to distinguish purple copper plate and brass plate?

1. The appearance color of the purple copper plate and the brass plate can be distinguished
Purple copper plate and brass plate surface is not the same, the color of brass plate is generally golden yellow, more gloss, but the color of copper plate is red, also have gloss, purple copper plate is called red copper, is pure copper, purple copper and brass in color is completely different! In fact, the color can be clearly distinguished at a glance. The surface of the purple copper plate is oxidized, and there is a layer of red cuprous oxide, which looks purple in color. The hardness of purple copper is harder than brass, similar weight! So you can tell it from the color.
2. Differentiation of ingredients
The main component of purple copper plate is copper, and the content of copper can reach more than 99.9%, although the composition of brass plate has copper but also zinc, copper content in 60%, zinc content in 40%, for other grades of brass, the lead content will change, and it is also well differentiated when analyzing the chemical composition.
3. Differentiation of tensile strength
Purple copper plate and brass plate in the tensile strength above is not the same, we can distinguish from the tensile strength, the chemical composition of brass plate is more so the tensile strength is high, but the composition of purple copper plate is more pure, relatively lower than the tensile strength of brass plate.
4. Differentiation in relative density
The density of brass plate is in the 8.52-8.62 range, often 8.6 to calculate the weight, the density of purple copper plate is in the 8.9-8.95 range, often 8.9 to calculate the weight. Brass plate with the promotion of zinc composition so they can be very good to bear the hot production and processing, often used in mechanical equipment and electrical parts, metal stamping parts and Musical Instruments. Purple copper plate has good electrical and thermal conductivity, and corrosion resistance, ductility. Purple copper plate has very good ductility, it often appears in the electrical industry.


Post time: Jun-17-2022
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