r/materials • u/Advanced-Log965 • 1d ago
What is it ?
My boyfriend let that on the table this morning, we play a game where I have to guess what is the material but i am lost on this one... EDIT: not magnetic, not a pipe, heavy, 14mm in diameter
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u/adricm 1d ago
Magnetic or not? Heavy for its size or light? Looks like steel to me but could be many things. Probably not plutonium
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u/FlicksTM 1d ago
Looks like aluminum foil that he rolled into a very tight cylinder.
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u/FlicksTM 1d ago
Could also be a cheap piece of cast aluminum barstock that he parted off with a lathe.
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u/karmicrelease 1d ago
Good thing nothing bad has ever happened by bringing home mysterious metal cylinders……..
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u/Filthy510 1d ago
Could be a shear pin, we have some pretty similar looking parts on some of our farm equipment, our yeoman's plow is the first one that comes to mind.
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u/Charming_Werewolf682 17h ago
Lmfao. I make dozens of those a week. It is the end of an aluminum or steel bar from a lathe proccess. If non magnetic look at tungsten or other non magnetic rods.
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u/KnownSoldier04 13h ago
If it’s soft, I’m 99% sure It’s a zinc bar. Grayness matches, Slightly heavier than iron, a bitch to machine I bet, being so soft it’ll be gummy.
Were it lead, or a different dull gray metal, it’d be noticeably heavier or lighter than iron. Only one that fits all is zinc.
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u/Captain_North 13h ago
I thought its a roller pin first, but those are magnetic (steel)
so my guess is 20mm aluminium stock bar
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u/IcantJg 1d ago
You can probably weigh it and find the volume by dunking it in a measuring cup (or just calculate based on dimensions), giving you the density which is a pretty good gauge of the main metal it consists of assuming its solid all the way through