Materials and Construction
Which of the following alloy steels has the energy saving properties making it suitable for use in electrical machines?

Molybdenum steel
None of these
Chromium steel
Silicon steel

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Materials and Construction
Chrome vanadium steels usually contain 0.8 to 1.1% Cr, 0.25 to 0.35% C and < 0.25% V.

Used for making axle & shafts of aeroplanes, automobiles and locomotives
Not helpful in producing cleaner steel due to oxidising action of vanadium
Having poor fatigue resistance
Having poor toughness

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