Friday 9 October 2009

Metals

- becoming less commonly used
- Ferrous metals
- Non ferrous metals
- Non ferrous alloys

Ferrous metals
- Iron + carbon
- Rusts and oxidises

Non Ferrous metals
- Dont contain iron

Ferrous Alloy
- mix of metals that contain iron and carbon

Non Ferrous alloy
- Mix of metals that doesnt contain iron

Ferrous Metals
- Brittle, strong inpact strength

Mild Steel
- 0.3% carbon
-rusts easily, cant be hardened or tampered
- car bodies, screws

High-carbon Steel
- Harder than mild steel
- Difficult to work and rusts
- Drills and saws

Cast Iron
- Hard, brittle under compace
- Machine parts, break discs

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