Aluminium is a soft and lightweight metal with a dull silvery appearance, due to a thin layer of oxidation that forms quickly when it is exposed to air. Aluminium is nontoxic (as the metal), non-magnetic, and non-sparking. Pure aluminium has a tensile strength of about 49 megapascals (MPa) and 400 MPa if it is formed into an alloy. Aluminium is about one-third as dense as steel or copper; is malleable, ductile, and easily machined and cast; and has excellent corrosion resistance and durability due to the protective oxide layer. Aluminium mirror finish has the highest reflectance of any metal in the 200-400 nm (UV) , and the 3000-10000 nm (far IR) regions, while in the 400-700 nm visible range it is slightly outdone by silver, and in the 700-3000 (near IR) by silver, gold and copper. It is the second most malleable metal (after gold) and the sixth most ductile. Aluminium is a good heat conductor which is why it is used to make saucepans.
Is there any to tell the difference between aluminum and magnesium?
Heated some VW casting up in a brush fire. Had a nice white hot fire.
You can use a drop of HCI (Muriatic acid) from the Pool or Home Center stores. Mag will fizz right away and aluminum will not. Keep in mind zinc will also fizz. but is heavier than mag or aluminum
Rupert Wenig wrote:
A drop of house hold white vinegar will do the same and is less caustic. Clean a spot first to expose clean metal.