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2CommentsJoined November 21st, 2014

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  • eager to learn2 commented on tranoxx's instructable Identify Metals1 month ago
    Identify Metals

    Without blemishing the metal with HCL acid or scraping it with a metal grinder, how can one differentiate between stainless steel -vs- aluminum? I've read you can't detect by sight or weight. Does either ping like crystal? Which professionals are considered experts in differntaiting metals? Thank you!

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