Metallurgy of the iron alloys. The foundation technical information about production of iron from ores in the coke blast furnaces. The Simultaneous production of steel in the oxygen converter and in electrical arc and induction furnaces. The main technologies used in a steel production. The continuous casting and ingot casting. The technology of gray cast iron and ductile cast iron. The furnaces used to the steel and cast iron production. Metallurgy of the non-iron metals and alloys. The trends of development. The foundry technologies. The mould and moulding materials, the preparing of moulds, the pouring and casting processes, crystallization, solidification of alloys. The casting from iron and non-iron materials. The heat treatment of these casting. Welding and weldability of materials. The welding technologies, manual welding and automatic welding, arc welding and additional materials. The welding of iron metals and non-iron metals and alloys. The reclamation welding. The defects in metallurgical, foundries and welding processes.