Course 105: Metals in the Plant : Introduces metals, metallurgy, and metalworking. Discusses the properties of metals, including their mechanical properties. Examines several industrial manufacturing processes. Covers iron and standard steels. Explains the different kinds of heat treatment and their usage. Discusses some techniques of working with copper, aluminum, magnesium, titanium, lead, nickel, tin, and zinc. TPC Training Systems is authorized by IACET to offer 1.0 CEUs for this program. Lesson : Four --- Topics: Iron ore; Pig iron; Smelting; Cast, gray cast, white cast, malleable cast, ductile cast, and high-alloy cast iron; Steel Learning Objectives: - Name the commercial grades of cast iron. - List the important mechanical properties of commercial grades of cast iron. - Describe the forms in which carbon appears in commercial grades of cast iron. - Describe the process of smelting. Source : http://www.tpctraining.com.