Chemistry metals
- Created by: megan_vincent
- Created on: 07-02-14 10:48
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- Benefits and Drawbacks of Using Metals
- Iron and steel can rust, severely weakening structures, e.g if the iron rods used inside reinforced cenrete rust, structures can collapse
- Stainless steel could only be used for small jobs due to the fact its much more expensive
- The expolitation of metal ores to extract metals causes pollution and uses up the Earths limited resources
- Metals are expensive compared to other materials like concrete
- Protecting them using coatings like paint or grease have to be applied regularly costs money
- Copper is a good electrical conductor for wiring; it is not reactive so can be made into water pipes
- Lead can be bent easily so is used to seal joints on roofs
- Steel is strong for girders and scaffolding
- Aluminium alloys are corrosin-resistant
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