Alloys: Composition + Properties

What do alloys allow us to do?

To tailor the properties of metals to specific use.

Name 7 alloys used:

Bronze, brass, gold alloys, high carbon steel, low carbon steel, stainless steel, aluminium alloys.

What’s the composition for bronze?

Copper and tin

What’s the composition for brass?

Copper and zinc

What’s the composition for gold alloys?

Mostly gold with copper, silver and zinc added.

What’s the composition for high carbon steel?

Iron with 1-2% carbon

What’s the composition for low carbon steel?

Iron with less than 1% carbon

What’s the composition for stainless steel?

Iron with chromium and nickel

What’s the composition for aluminium alloys?

Over 300 alloys available

What’s the properties for bronze?

Resistant to corrosion

What’s the properties for brass?

Very hard but workable

What’s the properties for gold alloys?

Attractive, corrosion resistant, hardness depends on carat.