What is the carbon content in pearlite or eutectoid steel 

What is the carbon content in pearlite or eutectoid steel  Correct Answer 0.80%

Explanation:

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Eutectoid/Pearlite steel:

  • A 0.8% carbon steel or eutectoid steel is known as PEARLITE steel.
  • This is much stronger than ferrite or cementite.
  • It is a phase mixture of  ferrite and cementite.
  • It contains ferrite 87% and cementite 13%.

Hypo-eutectoid Steel:

  • Plain carbon steels in which carbon percentage is less than 0.8% are called hypo-eutectoid steel.

Hyper-eutectoid Steel:

  • Plain carbon steels in which carbon percentage is more than 0.8% are called hyper-eutectoid steel.
  • High-Speed Steel is a high carbon tool steel, containing a large dose of tungsten. A typical HSS composition is: 18% tungsten, 4% Chromium, 1% Vanadium, 0.7% carbon and the rest, Iron.
  • Cast irons have a chemical composition of 2.15–6.7% carbon.

Related Questions

In Eutectoid reaction a solid phase transforms into two other solid phases upon cooling. Which one of the following is correct in the case of Eutectoid reaction occurring in Iron-Carbon phase diagram?
Steel with __________ carbon is known as hypo-eutectoid steel.
A steel containing _________ 0.8% carbon is known as hypo-eutectoid steel.