Cast steel components do not exhibit the effect of directionality on mechanical properties.
Explanation: In casting process, there is no control over the fibre structure, thus non directional characteristics for cast steel components.
During solidification, cast steel shrinks to quite a great extent
Explanation: Excessive contractions observed in cast steel.
Relative density of aluminium is roughly _______ of steel
Explanation: Aluminium alloy=2.7 Steel=7.9.
Which of the following statement is true
Explanation: Standard set for nomenclature.
Which of the following are true for aluminium
Explanation: All are properties of aluminium.
Is it possible to completely relieve the residual stresses in a cast steel product?
Explanation: Solidification results in great amount of residual stresses.
Poor fluidity and contraction are compulsory to be taken into consideration while designing a cast steel product.
Explanation: Contraction affects to quite a extent in cast steel.
In alloy 4450, 2nd digit represents?
Explanation: Second digit is used to represent major alloying element.
In alloy 4450, 4 represents?
Explanation: In alloy nomenclature,1=Al;2=Cu;3=Mn;4=Si;5=Mg.
An aluminium alloy casting with 9.8% Cu, 1.0% Fe and 0.25% Mg