BEN
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Registered: Feb 2000
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quote: Originally posted by handspringer
Aluminum is pretty soft:Element No. 13 of the periodic system; Atomic weight 26.97; silvery white metal of valence 3; melting point 1220 (degrees) F; boiling point approximately 4118 (degrees) F.; ductile and malleable; stable against normal atmospheric corrosion, but attacked by both acids and alkalis. Aluminum is used extensively in articles requiring lightness, corrosion resistance, electrical conductivity, etc. Its principal functions as an alloy in steel making; (1) Deoxidizes efficiently. (2) Restricts grain growth (by forming dispersed oxides or nitrides) (3) Alloying element in nitriding steel.
Anodized:A process of coating aluminum by anodic treatment resulting in a thin film of aluminum oxide of extreme hardness. A wide variety of dye colored coatings are possible by impregnation in process.
There ya have it. It's hard, but not scratch proof.
That's very useful, but you must remembre that there are many different isotobes of a metal avaible. Not all versions of aluminum are as soft as the other.
BEN
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