Determine types and temperatures of baths and quenching media needed to attain specified part hardness, toughness, and ductility, using heat-treating charts and knowledge of methods, equipment, and metals.
Examine parts to ensure metal shades and colors conform to specifications, using knowledge of metal heat-treating.
Heat billets, bars, plates, rods, and other stock to specified temperatures preparatory to forging, rolling, or processing, using oil, gas, or electrical furnaces.
Record times that parts are removed from furnaces to document that objects have attained specified temperatures for specified times.
Remove parts from furnaces after specified times, and air dry or cool parts in water, oil brine, or other baths.