Characteristics of steel

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


  • 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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