Engineering materials are materials used in the manufacture of machine tools and facilities that we use in everyday life around us that these materials must be able to work duties. That parts or equipment that has been designed. If we consider the properties of various materials and structures of various kinds of materials we can classify materials with the same structure and the properties and characteristics similar to the type of material combinations. To facilitate the selection of various materials have been classified into five major groups: 1. Metal materials can be divided 3 type steel copper iron 2. plastics. Or polymer 3. Ceramic category 4. Type composites 5. Type E (Electronic materials)