This edition is a complete revision and contains a great deal of new subject matter including information on ferrous powder metallurgy, cast irons, ultra high strength steels, furnace atmospheres, quenching processes, SPC and computer technology. Data on more than 135 additional steels has been added to the previously covered 280 alloys. Each data sheet gives you the chemical composition of the steel, a listing of similar U.S. and foreign steels, its characteristics and an explanation of the recommended heat treating procedure. Most of the compilation goes much further, offering a wide variety of additional data such as representative micrographs, isothermal transformation diagrams, cooling transformation diagrams, tempering curves and hardness diagrams. Additional aids include more than 650 figures, 400 micrographs, a glossary of selected heat treating terms, general engineering data and a detailed cross reference index.