We are engaged in supplying highly efficient Refractory Thermocouple Tube. Refractory Thermocouple Tube have a maximum service temperature of 2800oF (1550oC). Nitride bonded tubes are more dense and less porous than oxide bonded tubes. Refractory Thermocouple Tube also have slightly better thermal shock, corrosion resistance, and twice the crushing strength of the oxide bonded.