In a specimen of hardened steel, hard and soft spots indicate Metallurgy Mcqs March 23, 2019 BILAL KHATTAK0 A.Fre carbon B.Uneven heating C.Non-uniform composition of steel D.Presence of pearlite E.Presence of cementite Related Mcqs: The essential gradient of any hardened steel is Cracks of a vertical nature and dark coloured fissures in a sample of hardened steel indicate that If a medium carbon hardened steel shows pearlite structure it may be concluded that Killed’ steel is During hardening soft spots can be avoided by 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 Hypoeutectoid steel has the structure of Which of the following constituent will increase the hardness of steel? If the steel at room temperature is magnetic, the presence of which constituent can be ruled out? Steel balls for ball bearings are generally made of