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

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

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Materials and Construction
Lead is

Not resistant to corrosion
Not used as pigment (in its compound forms) for paints
Used as a shock absorber (in mattress form) between the foundation an steel framework of skyscrapper buildings
Used as a cathodic material

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