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