I'm sorry, should have specified more. The drain pans are actually cut from the same sheets as the side panels in order to reduce scrap. We want to stay with the brushed stainless steel look on the panels, so it has to be ss. The drain pans are punched from the sheet and welded on the ends.
The company I work for is looking to switch from stainless 304 to something more cost effective for use in condensate drain pans for geothermal units. So far we have considered stainless 301 and 201. It seems to me that 201 is going to have roughly the same resistance to corrosion as the 304 in...
