12-MTL-B2 Hydrometallurgy and Electrometallurgy 12-MTL-B3 Ironmaking and Steelmaking 12-MTL-B5 Metal Fabrication 12-MTL-B6 Physical Metallurgy of Iron and Steel 12-MTL-B10 Advanced Electronic Materials 12-MTL-B11 Corrosion and Oxidation 12-MTL-B15 Joining of Material