M.K.S. (Meter-Kilogram-Second) and SI (System International) units steel tables are reference book that provides a comprehensive collection of steel data in both M.K.S. and SI units. These tables contain information on the mechanical, physical, and chemical properties of different types of steel. The book is organized into sections for easy reference, with each section providing data on a particular property of steel, such as yield strength, tensile strength, hardness, and density. Additionally, the tables provide information on the composition of different types of steel, including their carbon, manganese, and silicon. content. M.K.S. and SI units' steel tables are a valuable resource for engineers, metallurgists, and designers who work with steel. The tables provide the necessary information to make informed decisions regarding material selection, design, and manufacturing processes.