Metal

Metal

1. Ferrous metals

   • Pure iron
     • Properties
       • Good magnetic properties
         • Soft, fragile and difficult to machine
           • It easily reusts.
           • Difficult band expensive to obtaini
       • Uses
         • Rarely used
         • Used in electronics and electrical components
   • Steel
     • Properties
       • Very good mechanical resistance , especially to traction.
       • Tough,malleable
       • Easy to weld
       • Little resistance.Alloys with chrome and nikel to make stainless steel
       • Uses
         • A lot of application
           • Structure in construction
           • Cars,boats,trains...
           • Tools
           • Kitchen tools
           • Chairs and tables
       • Moderate price
   • Cast Iron
     • Properties
       • Not malleable and not ductile
       • Not possible to weld
       • Brittle and not much mechanical resistace
       • Cheaper than steel
       • Uses
         • Elements with difficult shape
         • Engines , stands for machine, pistons , street lamps

2. Non-ferrous metals

   • Heavy
     • Density
       • ≤5kg/dm3
         • Example
           • Leab (Pb),Copper (Cu),Zinc (Zn),Tin (Sn),Nickel (Ni)
   • Light
     • Density
       • between 2 y 5 kg/dm3
         • Example
           • Alluminium (AI),Titanium (Ti)
   • Ultra-Ligth
     • Density
       • ≤ 2 kg/dm3
         • Example
           • Magnesium (Mg), Berylium (Be)