This book addresses what fills the critical need for workers and specialists in the iron and steel industry and to provide the students of the faculties of the different branches of engineering colleges and students basic technical information in this section of Sciences provides the latest version of modern science in the field of physical iron and steel and its alloys. This book is a modest attempt and effort of the author to fill the vacuum engineering library Arabia, and to provide reference in Arabic to satisfy the need in the field of iron and steel industry and the book consists of five chapters and ends with bibliographic terminology and the Scouts topics.