Metals
Metals come from the Earth in the form of ORE
Blast furnace
Molten iron
Ferrous (iron)
ALL FERROUS METAL RUST (OXIDATION)
Other steel
Carbon steel
stainless steel
Much harder- so can be used for tools
higher % of carbon
resistant to rust
contains Chromium (18%)
cutlery, sinks, surgical equipment
Mild steel
ALLOY OF IRON AND CARBON (99.7% IRON 0.3% CARBON)
Ductile, tough, malleable
Needs protection to stop rust - paint
