Molten copper and brass to 1150oC intermittent and continuous immersions.
Corrosive SO2 and SO3 gas (to 1375oC) and SO3 and HF gas (to 1100oC).
Open hearth furnace checker chambers to 1350oC.
Steel mill soaking pits to 1375oC.
Pelletising charter of Taconite refining operation to 1150oC.
Molten zinc to 875oC.
Molten lead to 350oC.
Basic steels and slags to 1735oC (intermittent) and 1375oC (continuous) in open hearth and general foundry practices.
Calcining kilns to 1200oC.
Barium titanate (barium oxide service) to 1200oC.
Magnesium oxide calcining kilns
Fluid bed cement process with severe corrosion and temperature to 1315oC (fluid method of producing builders cement).
Gas and ethylene cracking atmosphere.
Atmosphere directly above burning sodium (975-1375oC)
Oil fired furnace chambers.
Atmosphere directly above molten glass in an open hearth glass furnace
Molten silver solder.
Molten tin.
Borax flux
Copper matte.
Boiling sulphuric acid - 97%.
Blast furnace stove dome and bustle pipes.