steel and manufacturing methods

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Steeland manufacturing methods
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What is steel?

• Steel it is an alloy of iron and other elements
  like carbon.
• It has high tensile strength
• Low cost

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Application of steel

• Construction of roads, railways.
• Infrastructures.
• Construction of stadium.
• Airports.
• Bridges.
• Cars.
• Ship building.
• Aerospace.

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Different types of steels

• Long steel
• Flat carbon steel
• Weathering steel(COR-TEN)
• Stainless steel
• Low-background steel

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Usage of steel
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Manufacturing methods

• Modern steel process can be divided into two
• Primary steel making it involves converting
  liquid iron from a blast furnace and steel scrap
  into steel via basic oxygen steelmaking or
  melting scrap steel or direct reduced iron in an
  electric arc furnace
• Secondary steel it involves refining of the
  crude steel before casting and the various
  operations are normally carried out in ladles. In
  secondary metallurgy, alloying agents are added,
  dissolved gases in the steel are lowered, and
  inclusions are removed or altered chemically to
  ensure that high-quality steel is produced after
  casting.

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Major steel manufacturers
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Why steel manufacturers are more?

• Its because of its application and increase in
  the usage by several industries like
  construction, exporting, household production
  etc. Major industry is construction because of
  its characteristics like tensile strength , low
  cost, ease of availability.
• And today we can see that where several steel
  manufacturers are upcoming with several services
  including construction.