Zonon 2 Pcs 12'' x 2'' x 0.11 304 Stainless Steel Flat Bar Brushed Finish Trim Strips Sheet for DIY Projects, Precision Machinery, Hardware Manufacturing, Kitchen Gap Filling

They're likely not 304 stainless. They're not magnetic, but they're painted silver to hide something. Based on the edges, it appears corrosion is possible. This is likely high manganese steel, which is more rust resistant than carbon steel and useful for making tools and knives. High manganese steel is even harder to drill and fabricate than stainless. Since genuine stainless generally cost more, this likely explains the deception.

It's just plain stainless steel pieces of metal. I got these to cut and weld some patches in a metal door frame in my commercial building. We changed the door hardware and now there are some holes that need to be covered up, and I thought this would be the best way to patch them. They are very thick - too thick to bend with most metal brakes - so I will probably need to cut it and weld it back together in a L shape if I need an angle but that's ok. It's not structural just trying to cover some holes so insects and prying hands can't easily get in.

I buy a lot of metal, and this stainless steel is likely the worse-looking "new" stainless I have seen (see pictures). The bow in both pieces will be OK for my use since I am cutting them in smaller segments for brackets. But these things just look ugly. It is not just a matter of cleaning them; the crinkling on them requires some serious effort if you are looking for a finished look. Overall, I gave it three stars because the metal is functional for my use.