Magnesium or Aluminum

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Gnasha
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Joined: Wed Jul 13, 2016 11:09 am

Magnesium or Aluminum

Post by Gnasha » Tue May 02, 2017 2:30 am

Hi, I propose to cut and weld a alternator stand to support my upright conversion. I'm told some stands have more magnesium and would be difficult to weld, where as an all aluminum stand would be better.

Q. how can I tell the difference?

This is me first post, thanks for reading. :roll:
John

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BugUgly
Posts: 96
Joined: Thu Oct 02, 2008 10:59 pm
Location: Camas WA US

Re: Magnesium or Aluminum

Post by BugUgly » Fri May 05, 2017 10:56 pm

Scrape off a bit and touch it with a match. If it flares and sears the backs of your eyeballs, it's magnesium.
You can test it with vinegar, too. If it fizzes, it's Mg.


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BugUgly
Posts: 96
Joined: Thu Oct 02, 2008 10:59 pm
Location: Camas WA US

Re: Magnesium or Aluminum

Post by BugUgly » Fri May 26, 2017 5:18 pm

Heh...I think that's the site where I first learned about the vinegar. There's some good stuff on there.

And on here:
http://www.weldingtipsandtricks.com/

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