Metals
comes from the Earth in the form of ORE
ferrous (iron)
all ferrous metals rust (oxidation)
mild steel
needs protecting to stop rust - paint
ductile, tough, malleable
alloy of iron and carbon (99.7% iron 0.3% carbon)
other steel
stainless steel
resistant to rust
cutlery, sinks, surgical equipment
18% Chromium
carbon steel
much harder - used for tools
higher % of carbon (0.7-1.4%)
cast iron
blast furnace
molten iron
