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As we all know, there are many kinds of hardware fittings for doors in our In our daily life. The most commonly used materials are stainless steel, copper and aluminum. Today I'm going to tell you how we can distinguish between stainless steel and copper. It can be distinguished mainly from the following points as below:
1. It can be distinguished from specific gravity.
The density of copper is 8.9 (g/cm3) and that of stainless steel is 7.9 (g/cm3). In the same volume, the weight of copper is heavier than that of stainless steel.
2. It can be distinguished by grinding.
Copper parts will appear yellow after polishing, while stainless steel will appear silver or gray after polishing.
3. Chemical identification
Identification by copper sulfate. Remove the oxide layer from the steel, put a drop of water on it and wipe it with copper sulfate to see if it changes color. If it does not change color, it is usually made of stainless steel. If it turns red, it is made of other materials.
The above points are the easiest way to partition stainless steel and copper materials. So what are their advantages?
Stainless steel has high hardness, heat resistance and high temperature resistance. Stainless steel deformation is not easy to crack and environmental protection performance, not easy to rust, and has good ductility and toughness. It is suitable for all kinds of industrial manufacturing and widely used. The hardness of copper is lower than that of stainless steel and it is easy to process. Copper has good conductivity. Copper products are beautiful and suitable for various decorations.
Understanding these knowledge is very helpful for us to purchase shower room accessories from shower room manufacturer.