Does 304 stainless steel pipe need to be painted? ? Stainless steel pipes usually do not need to be painted. Under normal circumstances, there is an oxide film on the surface of 304 stainless steel pipes after pickling. The surface is smooth after pickling. Even if the stainless steel pipe is spray-painted, it will fall off quickly.
Stainless steel is originally an alloy steel with good corrosion resistance. The purpose of surface coating is nothing more than corrosion resistance. Therefore, painting stainless steel pipes is a waste. The function of the coating is to prevent corrosion. Stainless steel is corrosion-resistant, so do not spray paint. Make more paint rings or markings on the coating line.
1. The function of the paint coating is to prevent corrosion. 304 stainless steel pipes are corrosion-resistant, so not painting or painting is redundant supply and demand.
2. 304 stainless steel thick-walled pipes do not meet the basic consensus. The coating may be confused with carbon steel pipes, causing unnecessary trouble during the construction process.
2. Stainless steel itself has strong corrosion resistance. The coating is mainly to prevent rust, corrosion, etc., and carbon steel and other materials need to be coated.
Stainless steel pipes usually do not need to be painted, but they can be painted under special conditions, such as in marine environments. In addition, many foreign companies need to coat thick-walled stainless steel pipes. Therefore, this is not a special request from the customer. Generally speaking, stainless steel pipes do not need to be painted, and coating will only increase costs and waste energy. And the effect is not obvious.
