metals

metals

1. alloys

   • e.g. pewter, brass
   • metals containing 2 or more elements

2. non ferrous

   • no iron
   • not magnetic
   • dont rust tarnish
   • e.g.Cu, Al, tin, zinc

3. ferrous

   • mostly magnetic
   • rust
   • , carbon & other elements
   • e.g. wrought iron mild steel,cast iron stainless steel.

4. things to consider when choosing a metal

   • workablitity
   • rusting
   • ductility
   • elasticity
   • brittleness
   • tensile strength
   • hardness
   • malleability
   • apperance
   • structural strength