Scrap Metal Guide

​Verify whether the metal is lightweight, non-magnetic, and exhibits a dull silvery-grey, matte finish. It is fairly soft and can be scratched easily, in contrast to tougher stainless steel. A crucial test involves using a magnet: if it doesn't adhere, it is probably aluminum rather than steel. For additional testing, you can utilize a grinder. If it fails to produce sparks, it is aluminum. If it does spark, it is steel.

To identify whether an item is made of cast aluminum, check for a lightweight, dull grey look with a somewhat rough, pitted texture that frequently displays tiny sand-like flaws or molding lines. It is non-magnetic, brittle (it breaks instead of bending), and does not have the sharp edges typical of machined or die-cast components.

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Aluminum breakage is identified as cast aluminum contaminated with other materials (steel, plastic, rubber). It is characterized by being non-magnetic, lightweight compared to steel, and often includes items like mower decks, motors, or transmission casings. It is typically 35-50% aluminum, with the rest being contaminants. 

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