miércoles, 14 de junio de 2017

Metals


                                                            METALS

Is a hard element that shines that can be in a rock or in the soil like iron, gold.Metals can be good conductors of electricity.

TYPES OF FERRROUS: 

FERROUS METALS:
  Carbon steel: iron content 98.6 to 99.4 %. It is used to make cutting tools such as drill bits.





  




 Stainless steel: is made of iron, chromium and nickel. It resists corrosion and staining and is used   for the likes of cutlery and surgical instrumentation.

 



    






Cast iron: It is iron about  94 to 98%. Is very strong but is brittle. It's used for manufactured items such as engine blocks and manhole covers.

 






NON-FERROUS METALS:  

   Aluminium: very lightweight and easily worked. Used in aircraft manufacture, window frames and some kitchen ware.





    Cooper: is a natural ocurring substance, it conducts heat and electricity, it's used for wiring, tubing and pipe work.

 






    Brass: is a combination of cooper and zinc. Is usef for ornamental purposes and within electrical fittings.


 







     Silver: mainly a natural substance, but mixing with cooper creates sterling silver. It's used  for decorative impact in jewellery and ornaments, and also to solder different metals together.

 







    


 Lead: is a naturally occurring substance. It's heavy and very soft, is often used in roofing, in batteries and to make pipes.





TYPES OF FERROU ALOYS:

- Cast iron: are usually manufactured through casting technique owing to their brittle nature due to presence of iron carbide.

TYPES OF NON-FERROU ALOYS: 

Cooper aloys: are excellent electrical conductors and very good thermal conductivity and can be easily machined and soldered.
Brass: cooper and zync atoms are randomly dispersed at lattice points. 
Bronzes: are softer and weaker than steel. corrosion resistance, heat and electric conductivity are also better than steel, while the cost is higher than steels.

SUPERCONDUCTOR METALS: 

Mercury, lead, tin, aluminium and zinc. 















SOURCES OF INFORMATION: 
http://www.castlemetalseurope.com/blog/ferrous-nonferrous-metals-uses/
http://www.vam.ac.uk/__data/assets/image/0004/182875/2006AL2976de_lamerie-cup_and_cover.jpg
https://es.slideshare.net/drsjose/ferrous-alloys