D5is it possible to produce an iron–carbon alloy that has a minimum tensile strength of 620 mpa (90,000 psi) and a minimum ductility of 50% ra? if so, what will be its composition and microstructure (coarse and fine pearlites and spheroidite are alternatives)? if this is not possible, explain why.(3 pts)

Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.