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Metals

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Uses: Cutting tools (chisels, saws, files) dies punches springs hammers.. Silver Steel carbon content _at_ 1.0%, ... Tool Steel Used for making engineering tools. – PowerPoint PPT presentation

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Title: Metals


1
Metals
  • There are two types of metals
  • Ferrous (contain iron)
  • Non- Ferrous (do not contain iron)

2
Ferrous Metals
All the metals in this group contain Iron. They
include wrought iron, mild steel and cast steel.
Ferrous metals rust easily when exposed to the
atmosphere and are magnetic.
Plain Carbon Steels Alloy Steels
3
Plain Carbon Steels
These steels are a series of iron and carbon
alloys with carbon content varying between 0.05
and 1.4
Dead mild Steel
  • Low carbon content 0.05-0.15.
  • Ductile and easily formed
  • Uses chains, rivets, nails, thin wire

4
Mild Steel
  • carbon content 0.15-0.30.
  • Bright mild and Black mild, Bright mild used in
    benchwork Black mild used for forging
  • Ductile, easily cut, machined and welded, cannot
    be hardened or tempered
  • Uses General engineering work, girders, plates
    for ship building, gates.

5
Medium Carbon Steel
  • carbon content 0.30-0.60.
  • Greater strength than mid steel but not as
    ductile or malleable.
  • Uses Axles, rail tracks,spades wire ropes..

6
High Carbon Steel (Cast Steel)
  • carbon content 0.6-1.4.
  • Hard and wear resistant can be hardened and
    tempered.
  • Uses Cutting tools (chisels, saws, files) dies
    punches springs hammers..

7
Silver Steel
  • carbon content _at_ 1.0, contains chromium
  • Does not contain silver gets its name from
    appearance
  • Uses Scribers and screwdriver heads.

Tool Steel
  • Used for making engineering tools.

8
Tinplate
  • Tinplate is produced by coating thin sheets of
    steel containing 0.1 carbon with Tin.
  • The process of coating the steel is called
    Electro-plating.
  • Uses for food containers. It is also used as
    containers for many other products such as paint,
    lubricants etc.

9
Galvanised Iron
  • This is mild steel coated with Zinc.
  • The coating is usually achieved by dipping the
    steel article in a bath of molten zinc.
  • Uses for roof sheeting, gates, water tanks,
    dust bins and other outdoor articles.

10
Alloy Steels
These steels are produced from adding elements
such as chromium, tungsten, nickel and manganese
to steel.
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