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  1. #1
    mike1 started this thread.
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    how to tell stainless,diecast ali and cast ali apart?

    i was wanting to know about stainless steel if it has little tiny lines on it it means its stainless and not ali right? what about diecast vs cast? i know cast breaks but what about diecast? i got this screw gun from a guy and its all non magnetic it is about 2lbs would it be diecast cast or stainless? thanks looks like this but a little different

    Last edited by mike1; 11-19-2018 at 02:36 PM.

  2. #2
    Patriot76's Avatar
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    Stainless steel is usually non-magnetic (some grades are slightly magnetic) and will throw sparks when hit with a grinder. Aluminum will not throw sparks when hit with a grinder. A couple of valuable threads that you might want to bookmark:

    Compliments of Hobofinds -
    Compliments of Admin. - Identifying Scrap Metals with Spark Testing
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