I picked up some fine screen at a metal recycler. It looks like stainless and is non-magnetic. Are there any good tricks to identify whether it is stainless steel, or some other metal? I am thinking about using it in homebrewing equipment.
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A very non-technical way would be to drop a piece in a glass of beer and see whether it is affected. If it stays bright and clean, and doesn't develop any crud or sludge, I'd say you are good to go. If you want to be more thorough, try it in several household products, such as vinegar, drain cleaner, cola, etc, and see whether it is affected by any of them.
I have used the "spark Test" to identify bolts made of Stainless and Titanium. Titanium gives off bright white sparks when touched to a spinning grinding wheel, Stainless sparks are not as briliant.
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