Materials and Construction
Aluminium as a material of construction suffers from the disadvantage of

Scarce availability
Very high cost
Rather low tensile strength
Very low strength to weight ratio

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Materials and Construction
Monel alloy is

Not suitable for making kitchen utensils
Not used in cast and wrought forms
The costliest of all the alloys of nickel
Used for making steam valves and turbine blades as it resists steam attack at high temperature

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