Civil Engineering - Building Materials - Discussion

48. 

Invar contains

[A]. 12% of nickel
[B]. 24% of nickel
[C]. 30% to nickel
[D]. 36% of nickel.

Answer: Option D

Explanation:

No answer description available for this question.

Aruna Jain said: (Mar 21, 2014)  
Invar contains 36% ni+2 & 64% alloy of steel.

Vicky said: (Aug 2, 2016)  
Invar steel is used for precision levelling staffs.

Shovon said: (May 10, 2018)  
It is 64% Fe + 36% Ni.

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