This is one of the most common elements in the earth’s crust. It is a paramagnetic metal with a white-silvery shade, very light. It is easy to undergo any mechanical treatment. He has a high electro-conductivity. Hardness Brinell — 24 to 32 kgf/mm2. Rupture strength of 10−12 kg/mm2, and the alloy it increases three to four times. High ductility is 50% pure aluminium and 35% technical. It has high electrical conductivity 0,037 Ohm • mm2/m, which represents approximately 66% of the conductivity of copper. It can form alloys with almost all metals, the most popular of its alloys with silicon, magnesium, copper.
|Atomic (molar) mass, g/mol||26,98|
|The melting temperature t°C||660,3°C|
|The degree of oxidation||3|
|The thermal conductivity K [W/(m·K)]||237|
|Molar volume cm3/mol||10|
This metal is lighter than steel 3 times. It is perfectly punched, cut, drilled, has high conductivity and is not toxic. It is used in food industry for the manufacture of heat-resistant foil, kitchen utensils. Probably the only drawbacks of aluminum is low strength.
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