各的金屬屬性比較

將iron , copper , aluminium , titanium , gold , mercury and silver 從 price , density , melting , strenght , electrical , corrosion resistance 來比較
price
gold > silver > titanium > mercury > copper > aluminium > iron
density
gold > mercury > silver > copper > iron > titanium > aluminium
melting
titanium > iron > copper > gold > silver > aluminium > mercury
strength
copper > titanium > iron > silver > gold > aluminium > mercury
In fact copper, titanium, iron with different treatments will get different strengths.
electrical resistance
titanium > iron > aluminium > gold > copper > silver
corrosion resistance
gold > silver > mercury > copper > iron > titanium > aluminium
I hope this can help with your understanding. =)