3. N5 Metalwork - Materials

Where do pure metals come from?

• The earths crust

• Man made

TRUE OR FALSE: Metals can either be Pure or Alloy?

• True

• False

Made from one type of atom, there for are found on the periodic table. Eg. Copper, Tin, Silver, Gold.

• Alloy metals

• Pure metals

Made from a mixture of two or more elements, one of which being metal. Eg. Brass, Bronze or Stainless steel

• Alloy metal

• Pure metal

Cracks or breaks easily

• Thermal conductor

• Malleable

• Brittle

Does not rust

• Resistant to being scratched

• Corrosion resistant

• Elasticity

Can be stretched out without breaking

• Ductility

• Hardness

• Brittle

The resilience of the material and its resistance to wear and tear

• Durability

• Electrical conductor

• Hardness

Able to maintain temperatures

• Electrical conductor

• Thermal conductor

• Malleable

Able to pass an electric current through the metal

• Brittle

• Electrical conductor

• Elasticity