Question

Rolled steel is the term used for steel that has been completely oxidized to remove trapped carbon monoxide bubbles in the steel. (True/False)

Which of the following applies only to aluminum? a)commonly refined from bauxite ore b) has a unit weight of 490 pcf c) carbon content greatly impacts material properties d) a typical modulus of elasticity for civil engineering applications is E=29000 ksi

Answer 1

False

Rolled steel is a steel made by rolling and pressing steel sheets at very high temperature to make large rolls which are easier to work with the help of rollers to give steel rolls final dimension.

Deoxidized steel is steel completely oxidised to remove trapped carbon monoxide bubbles in the steel

a)commonly refined from bauxite ore

Bauxite ore is main source of aluminium. It is refined by Bayer process to obtain aluminium

Aluminium has a unit weight of 168.5 pcf

Carbon content does not greatly impacts material properties

Modulus of elasticity = 10000 ksi