Where can the stainless steel bench and steel metro chair be used? Let us know some technical information about these Stainless Steel Bench and Steel Metro Chair. 1. Stainless Steel Bench :- Stainless steel benches are manufactured from several grades of steel including stainless steel 202 grade, stainless steel 304 grade and stainless steel 316 grade. Commonly made of stainless steel grade 304 and grade 316 are used for bench outdoor. If the climate is good and there is no moisture then there is no problem in stainless steel 304 grade and 316 grade. However, chemicals, paints and thinners should not be used in the place where stainless steel products are installed. If all these things are taken care of, then stainless steel benches do not deteriorate over the years, just a little maintenance is good, by the way, stainless steel benches are maintenance free. 2. Steel Metro chair or Steel Visitor Chair :- Steel Metro Chairs or Stainless Steel 202 Grade Benches are made for indoor use only. Due to the moisture and air pollution of nature, the surface of metro chair and stainless steel 202 grade is affected, so these metro chairs can only be used indoors. If they are also taken care of continuously, then these steel metro chairs can be used only in comparison to stainless steel benches.