1. Alloys

2. The Differences Between Pure Metals & Alloys

3. Pure Metals Pure Metals have the following physical properties … High Density. High Melting & Boiling Points. Good Conductors Of Heat & Electricity. Malleable. Ductile. Lustrous.

7. FORCE FORCE

9. FORCE

10. The weakness of pure metals are ... WEAK & SOFT due to their DUCTILITY & MALLEABILITY.

12. Alloys Why Make Alloys ? To increase the strength and hardness of a pure metal. To increase the resistance to corrosion of a pure metal. To improve the appearance of a pure metal.

13. Composition, Properties, & Uses of alloys

14. BRONZE Composition 90% of copper & 10% of tin. Properties Hard, strong, does not corrode easily & shiny surface.

15. BRASS COMPOSITION 70% of copper & 30% of zinc. PROPERTIES Harder than copper.

16. Cupro-nickel COMPOSITION 75% of copper & 25% of nickel. PROPERTIES Beautiful surface, shiny, hard & does not corrode easily.

17. STEEL COMPOSITION 99% of iron & 1% of carbon. PROPERTIES Hard & Strong.

22. .. THE END ..