How long can 304 stainless steel plate remain rust-free

How long can 304 stainless steel plate remain rust-free

The chromium content of 304 stainless steel plate is 18-19%, and the nickel content is 8.0-8.9%. Due to its high nickel content, it has greatly enhanced corrosion resistance. It can last for more than 15 years in ordinary environments and about 5 years in harsh environments (such as coastal areas and areas with severe industrial pollution).

Many users mistakenly believe that rusting of stainless steel indicates a quality issue. However, this is a one-sided understanding. Stainless steel is merely more resistant to corrosion.

Xinyuanrun, a stainless steel plate manufacturer, recommends that customers use 304 stainless steel plates for outdoor applications, as 304 stainless steel plates have several times stronger corrosion resistance than 201 stainless steel plates in the same environment.

When selecting stainless steel plates, it is impossible to distinguish between 201 and 304 stainless steel plates with the naked eye. When purchasing, it is advisable to ask the supplier for a test report on the composition of the stainless steel plate, or use stainless steel testing solution to identify its material.