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METALS

     METALS


A material that can be in a solid or a liquid state and usually has a lot of electrical conductivity, one of the material properties. A good example of a metal it's gold. They are classified in two types ferrous and non-ferrous.




Types of Metals

1.FERROUS METALS: they contain iron. Ferrous metals can be picked up by a magnet,they are not resistant to rusting.

Some examples of ferrous metals are:

a) Cast Iron : used to make frying pans. The principal properties of cast iron are: 

- Resistance to corrosion
- Hardness
- Strength



Resultado de imagen de cast iron




b)Carbon Steel: used in tools. 

The proerties of carbon steel change depending on the number of carbon that contains. The general properties that nearly all share is:

- Strength and ductility (as higher is the number of carbon content the strength grows and ductility is lower.) 

 -Strong metal

 - Resists to compression



Resultado de imagen de carbon steel



c)Mild Steel: used in building car bodies, gates...

 It has the following properties:

 - Ductile metal

 - Malleable 

 - It rusts quickly










d)  Stainless Steel:  This is an example of an ferrous alloy. Used for teapots, cookware...

 It's properties are: 


- Resistance to water corrosion

 - Resistance to rug

 Resultado de imagen de stainless steel uses

e) High Carbon Steel: used for hand tools.

 It's properties are:

 - Very strong 

 - Very hard

 - Very tough
Resultado de imagen de high carbon steel uses
2. NON-FERROUS METALS:  this are metals that doesn't have any iron at all. The general properties of non-ferrous metals are: they are not attracted to a magnet and they do not rust in the same way than ferrous metals.

 Some examples of non-ferrous metals are: 
a) Aluminium: used for window frames, expensive bycicles...

 The general properties of aluminium are:

- Very light

 - Very light grey colour










b) Cooper: used for cookware, money...

 It's properties are:

 - Ductile

 - Malleable

 -Good conductor of electicity and heat

 Resultado de imagen de copper uses

c) Zinc : used on steel buckets.

 Zinc properties are:

 - Resistant to corrosion

 - Weak metal



Resultado de imagen de steel bucket free images



d) Tin: used on cans.

 It's properties are:

 - Ductile

 - Malleable

 - Resistant to corrosion

 Resultado de imagen de tin cans




e) Lead: used for batteries.

 Lead properties are:

 - Soft

 - Malleable

 -Heavy
Resultado de imagen de lead batteries


NON-FERROUS ALLOYS:

 - Brass: is a mixture of copper and zinc. Copper is the main component. Used to make musical instruments.

 Properties:

 - Good conductor of heat

 -Resistant corrosion
Resultado de imagen de brass uses


- Bronze: mixture of copper and tin. Used for statues or medals.

 Properties:

 - Hard

 - High resistance to corrosion
Resultado de imagen de bronze uses




NEW MATERIALS ABOUT METALS:
Nanoalloys: they are used to replace platinum, wich is expensive, in fuel cells.




SOURCES OF INFORMATION:

 http://www.materialsforengineering.co.uk/engineering-materials-news/nanoalloys-to-replace-pure-platinum-in-fuel-cells/155728/

 14-06-17
https://es.slideshare.net/fjpwhelan/metals-ferrous-and-non-ferrous

14-06-17


http://www.stainlesssteelblog.com/2012/11/304-vs-201-stainless-steel.html

 14-06-17

 http://www.dictionary.com/browse/metal

 14-06-17





                                                       

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