im going to the recycling center cause i have alot of copper from work on car audio and as i was leaving i seen some metal poles in my garage and they have been there for awhile but how can i identify them or find out if they are aluminum.
Use a magnetAluminum doesn't attractThe recycling center can tell you for sure, I would expect they are not steelThey would be stainless steel if they had been installed in a food making area.