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metals - Coggle Diagram
metals
ferrous (contains iron)
cast iron
very high amount of carbon (around 4%) - brittle but very durable
contain iron - rusts
mild steel
small amount of carbon (0.3%)
ductile tough malleable and very high tensile strength
rusts easily
stainless steel
resistant to rust
contains chromium (18%)
cutlery, sinks, etc
carbon steel
much harder used for tools
higher% of carbon (0.7-1.4%)
case hardened
prone to rusting
non ferrous metals
aluminium
light, recyclable, conducts heat and electricity
lead
soft and malleable
used for car batteries, old plumbing
poisonous
tin
used for alloys
low melting point
soldering
pewter
zinc
used to coat steel to prevent rust - galvanising
copper
electrical cables
very conductive
metals come from the earth as ore
blast furnace turns them into liquid
