A professional who supervises and coordinates activities of workers engaged in operation of blast furnace to produce molten pig iron. Respnsibilities include:

• Directs workers in charging furnace with specified amounts of raw materials, such as iron ore, coke, and limestone.
• Observes color of molten metal through tuyeres, or reads pyrometer and orders changes in furnace temperature and pressure.
• Estimates amounts of ferrosilicon, manganese, and phosphorous to add to molten metal to obtain specified type of pig iron.
• Directs workers in flushing and tapping furnace and in positioning ladles to receive molten metal.
• Observes color of molten metal flowing in runners during casting operations to determine quality of iron.
• Performs other duties as described under supervisor master title.