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Metals

Published on Nov 20, 2015

Metals: iron and steel.

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1.

Metals

ferrous metals
Photo by Patrick Hoesly
2.

ferrous metals

Ferrous metals are iron-based materials used in a variety of industrial applications
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3.

Ferrous metals are iron-based materials that are used in a wide range of industrial applications.

4.

IRON

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5.

Untitled Slide

  • the most widely used
  • used as an alloy
  • heavy, ductile, malleable
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6.

Steel

an alloy of iron containing up to 3% of other elements including carbon
you can watch this video about making steel

► 5:00
How it's made - Stainless steel ( RO Sub ) - YouTube
www.youtube.com/watch?v=cvXtUKYs3tw
7.

Non ferrous metals

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8.

Base metals and noble metals

  • aluminium
  • copper
  • lead
  • zinc
  • silver
  • brass
  • gold
9.

Types of steel

according to the percentage of carbon
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10.

carbon steels

  • mild steel (up to 0.25 %
  • medium-carbon (0.25% to 0.45%
  • high-carbon (0.45% to 1.50%)
11.

Changing the carbon contents changes the properties of the steel. The more carbon it contains the harder it is

12.

Aluminium

the third most common element
Photo by C. Vizzone
13.

Charateristics

  • light, grey metal
  • recovered from bauxite
  • good conductor of electricity
  • it machines well
  • it can be extruded

Roberta