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Characteristics of steel
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Engineering Metallurgy
Q. Which of the following parameters is/are false for steel?
- Published on 11 Sep 15
a.
High carbon content
b.
High melting point
c.
Low damping capacity
d.
None of the above
ANSWER: High carbon content
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Discussion
Sravanthi
-Posted on 21 Nov 15
-
Steel
is an alloy of iron and carbon. It consists of carbon (2%), manganese (1%), silicon, phosphorus, oxygen and sulphur.
- Steel has high tensile strength.
- Steel has low carbon content, high melting point and low damping capacity.
- Carbon and other elements act as hardening agents that prevent movement of dislocation which occur in crystal lattices of iron atoms.
- Tensile strength of steel is increased by nickel and manganese due to which austenite form of iron-carbon solution are stable.
- Chromium present in steel increases hardness and melting temperature. Vanadium increases hardness and makes steel less prone to metal fatigue.
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