304 stainless steel pipe and 201 stainless steel pipe are two popular stainless steel pipe materials in the stainless steel decorative pipe market. So what is the difference between 304 stainless steel pipe and 201 stainless steel pipe?
1. Different content of main alloying elements
2. Performance difference
Due to the difference in the content of chromium and nickel and the difference in carbon content, the 304 stainless steel pipe is softer than the 201 stainless steel pipe, and the 304 stainless steel has better corrosion resistance.
3. Differences in the scope of application
201 stainless steel pipe has poor acid resistance and is mainly used in dry areas and decorative areas with lax quality requirements. It is generally used in indoor and dry and ventilated places. 304 stainless steel pipe has good acid resistance and can be used in bathrooms, kitchens and coastal wet areas. 201 stainless steel pipe is high in manganese, the surface is very bright, and the high manganese content is easy to rust. 304 stainless steel tube contains more chromium, the surface is matte, and it is not easy to rust. The two are clearly different together. The more important thing is that the corrosion resistance is different. The corrosion resistance of 201 stainless steel pipe is very poor, so the price is much cheaper, and because 201 contains low nickel, the price is lower than that of 304, so the corrosion resistance is even worse than that of 304. .
4. Color difference
Vacuum electroplating is better than water electroplating, but both plating methods will first remove the protective film of stainless steel. It is recommended to use 304 stainless steel for electroplating color stainless steel pipes.
5. Difference in use
In life, the bathroom is humid and the kitchen is full of soot. Therefore, 304 stainless steel must be used in these two places to ensure that stainless steel products do not rust. In the field of high-rise water supply, the general high-rise water supply system has a high working pressure, and the 304 stainless steel pipe has a strong tensile force, and the possibility of water leakage under the action of external force is very small, which is the choice of high-rise water supply system. In coastal areas, due to the sea breeze in coastal areas, the corrosiveness is strong. When choosing stainless steel pipes, 304 stainless steel pipes must be selected. Using 201 stainless steel pipes will quickly rust.