There are certain key alloys, stainless steels, nickel alloys, and low alloy steels that are of paramount importance to the power generation, petrochemical, and oil and gas industries. The Alloy Tree addresses the significance of such alloys and their role in these fundamental industries. The book begins with a short introduction and a master flow diagram that shows the interrelationship between the main alloy groups. Following this are ten chapters describing how stainless steels, nickel alloys, and some low alloy steels have evolved from plain carbon steel. Each chapter explains the background, development, key properties, and applications of the alloy type.