In steel carbon is Materials of Construction Mcqs January 4, 2020 BILAL KHATTAK0 A.present wholly in the combined form B.mostly present in the free state as graphite C.not desirable D.none of the above Related Mcqs: In pack-carburising carbon is supplied Carbon steel is When piece of 0.2% carbon steel is heated above third critical point the steel is a solid solution of carbon in gamma iron and called Attack of steel is increased by C-14 steel indicates plain carbon steel containing carbon percentage Man dies in an atmosphere of carbon monoxide because In plain carbon steel as the percentage of carbon increases from 0.2% to 0.8% which of the following decreases? White cst iron contains The solid solution carbon in alpha iron obtained on cooling of 0.2% carbon steel which have been heated above the third critical point is called The percentage of carbon in low carbon steel is