The annual global production of ferrous materials exceeds the sum of all other metallic materials by more than one order of magnitude. The huge demand for ferrous materials is driven not only by costs and availability, but chiefly by their wide range of useful properties that can be tailored by alloying and processing. This book addresses these relationships and applications of ferrous materials. Each chapter deals with particular topics relating to both steel and cast iron, which have hitherto been handled separately for historical reasons. Part A describes the fundamental principles. Part B comprises almost two thirds of the book and discusses standardised materials, their processing and applications as well as recent developments. Annex C describes the designation systems and gives a brief history of ferrous materials. The individual chapters are: A1 Constitution B1 Materials for general applications A2 Microstructure B2 High-strength materials A3 Heat treatment B3 Materials for surface layer treatments A4 Properties B4 Tools for processing minerals B5 Tools for processing materials B6 Chemically resistant materials C1 Material designations B7 Creep-resistant materials C2 History of iron B8 Functional materials This book focuses on materials technology and is intended for engineers working with ferrous materials in practical situations who wish to deepen their understanding or who are looking for advice.