Do 304 stainless steel pipes need to be painted? Stainless steel pipes usually do not need to be painted. Under normal circumstances, 304 stainless steel pipes have an oxide film on the surface after pickling. The surface is relatively smooth after pickling, and it is not easy to adhere to the paint on it. Even if the stainless steel pipe is painted, it will fall off soon.
Why is it not recommended to spray paint on the surface of stainless steel pipes?
Stainless steel is originally an alloy steel with good corrosion resistance. The purpose of surface coating is nothing more than anti-corrosion, so it is a waste to paint stainless steel pipes. The role of painting is to prevent corrosion, and stainless steel is corrosion-resistant, so there is no need to paint. The specific reasons are as follows:
1. The role of paint coating is anti-corrosion, and 304 stainless steel pipes are corrosion-resistant, so don't paint. Painting is a redundant supply and demand relationship.
2. 304 stainless steel thick-walled pipes do not meet the basic consensus, and the painting may be confused with carbon steel pipes, causing unnecessary trouble during construction.
3. Stainless steel itself has a strong corrosion resistance, and painting is mainly to prevent rust, corrosion, etc. Painting is suitable for pipes that are prone to rust and corrosion, such as
carbon steel pipes.
Stainless steel pipes are usually not required to be painted, but in special circumstances, such as marine environments, they can also be painted. In addition, many foreign companies need to paint thick-walled stainless steel pipes. Therefore, this is not a special requirement of customers. Under normal circumstances, stainless steel pipes do not need to be painted, and painting will only increase costs and waste energy. And the effect is not obvious.
In addition, the raw materials used for spraying paint are chemical substances after all, which are still corrosive to stainless steel pipes. It is still very easy to rust after long-term use, so it is best not to spray paint stainless steel pipes.
If you want colored stainless steel pipes, Hunan Standard Steel Co., Ltd., a stainless steel pipe manufacturer, recommends that you can choose colored stainless steel pipes. Whether it is vacuum plating or wood grain transfer stainless steel pipes, the technical process of colored stainless steel pipes is already very perfect, and the finished colored stainless steel pipes are bright in color and durable.
Read more: 304 Stainless steel pipe specification or 304 vs. 316 Stainless Steel