Aluminum is a soft and light metal with a dull silvery color. This color comes from the thin oxide layer that forms on it when exposed to air. Aluminum is non-toxic and non-magnetic. It does not spark. While the tensile strength of pure aluminum is about 49 megapascals (MPa), this value increases to 700 MPa when alloyed. Its density is about one-third that of steel or copper. It can be easily forged, machined and cast. It has very superior corrosion properties due to the protective oxide layer formed on it. Symbol: Al Atomic Number: 13 Atomic Weight: 27 Density: 2.7 gr/cm3 Melting Point: 660 ° C Boiling Point: 2300 ° C Thermal Conductivity (K): 2.37 W/cm/K (at 25 ° C) Electrical Conductivity: 64.94% IACS (Pure Al, at 2 ° C)