Check with your local recycling center. That'll make the guilt go away.I feel a pang of wonder and guilt every time I toss an empty one.
haha, did the same thing, it works just great.I glued a cork knocker in one to be my ashtray for when I smoke by the computer.
Depending on the additives/carbon content and how the steel is processed can make steel really strong, tough, brittle, and/or soft. When I taught metal working at a high school I made three knife banks from the same steel but heat treated them differently. One would shatter when hit with a hammer, one would mush out when hit and the other would show no mark from the hammer strike. Tobacco tins tend to be a guilded/painted steel.They are mildly magnetic and do rust so they aren't aluminum but they are softer than steel.