Welder's job Skills and knowledge of welder Currents welding processes Gas actions in welding The weld bead in depth The weld bead Blog index Metallurgy Book page one History and technics of metals The origins of metallurgy The history of metallurgy and industry How steel is made? How is steel processed?. Ironworking compagnies Eurpean norms Eurpocodes Building materials | Cast iron Building materials | Group 1 steels Building materials | Group 2 steels Building materials | Common use of steels Non-ferrous metals and alloys. Cast aluminium alloys. Informations on materials, aluminium. Informations on materials, zinc. Informations on materials, nickel. Informations on materials, tungsten. Informations on materials, gold.