The field of materials science and engineering which studies the physical and chemical behavior of metallic elements is called metallurgy. It also studies their inter-metallic compounds and their mixtures, which are known as alloys. Steel metallurgy is a domain under the subfield of metallurgy known as ferrous metallurgy. Steel is an alloy of iron and carbon in which the carbon content is not more than 2 percent. There are many types of steel which are classified broadly into a few major groups on the basis of specific criteria. These are surface conditions, chemical compositions, applications and shapes. This book provides comprehensive insights into the field of steel metallurgy. The fundamentals as well as modern approaches of this field are discussed in it. Those with an interest in the field of steel metallurgy would find this book helpful.