Al
Copper and zinc
It is insoluble in water, but soluble in concentrated acids.
They are valued for their ease with which it can be formed into desired shapes and forms while retaining high strength.
Ti
It is as strong as steel.
It is harder than any of its metal ingredients.
It is extremely strong and resistant to atmospheric corrosion.
It acquires a protective patina that is copper carbonate formed on the surface of the metal when hydrogen sulfide combines with oxygen or sulfur dioxide.
At high temperatures the metal will burn in air and, unusually, it will also burn in pure nitrogen.
Small amounts of other metals are added to it to make harder alloys for most uses.
They are considered malleable and ductile.
Resistant to corrosion and attack by most chemicals.
It has been used since prehistoric times to forge tools, weapons, statues and ornaments.
It is ductile and it is malleable when heated.
Cu
Copper and tin
