METAILS

METAILS

1. Ferrous metals

   • Pure iron
     • Properties
       • Greyish white color
       • Good magnetic properties
       • Disadvantages: only melts at high temperatures; difficult to machine: fragile and brittle
     • Uses
       • Rarely used. Used in electronics and electrical components
   • Cast iron
     • Properties
       • Very hard and resistant
       • Uses
         • Machine parts, casing for engines, stands for machines, pistons, street lamps, drain covers...
   • Steel
     • Properties
       • Very resistant to traction
       • Very hard and resistant
       • Easy to weld
       • Alloys with chrome and nickel to make stainless steel
     • Uses
       • Structures in construction, car chassis, boats, trains, machinery, tools, screws, domestic appliances, kitchen utensils, taps...

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