Collect samples, or signal workers to sample metal for analysis.
Pour and regulate the flow of molten metal into molds and forms to produce ingots or other castings, using ladles or hand-controlled mechanisms.
Read temperature gauges and observe color changes, adjusting furnace flames, torches, or electrical heating units as necessary to melt metal to specifications.
Examine molds to ensure they are clean, smooth, and properly coated.
Position equipment such as ladles, grinding wheels, pouring nozzles, or crucibles, or signal other workers to position equipment.
Turn valves to circulate water through cores, or spray water on filled molds to cool and solidify metal.
Add metal to molds to compensate for shrinkage.
Pull levers to lift ladle stoppers and to allow molten steel to flow into ingot molds to specified heights.
Load specified amounts of metal and flux into furnaces or clay crucibles.
Remove solidified steel or slag from pouring nozzles, using long bars or oxygen burners.