How Can You Tell If Metal Is Aluminum?
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Aluminum is a light metal that is used to make a myriad of household and industrial items. Many people recycle scrap aluminum for money, but in order to do so, you must be certain that your metal is actually aluminum.
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Test it with a magnet
Aluminum is not magnetic. Bring a magnet around aluminum and it will not stick; it will simply fall off. Test your unknown metal for magnetic pull. If it doesn’t react, then it could be aluminum.
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Grind it
If you have access to an angle grinder, try grinding a portion of the unknown metal down. Unlike most metals, aluminum will not produce sparks when ground with an angle grinder.
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Estimate its weight
Aluminum is a very light metal. If your unknown metal is incredibly light, it might be aluminum.
