The nozzle brick is the part closest to the furnace in the regenerative burner. Various gases are ejected from its round hole and burn directly in contact with the temperature of the furnace. Therefore, its position has the highest temperature and the most severe erosion. In addition, in order to change the direction of the flame, the nozzle brick is composed of round holes with various angles. Therefore, the structure of the nozzle brick is relatively weak, so the material of the nozzle brick must be strong to meet this demand.

Normal temperature compressive strength (110ºC*24h) 32.4Mp

Normal temperature flexural strength (110ºC*24h) 5.2Mp

Normal temperature compressive strength (1300ºC*3h) 80Mp

Room temperature flexural strength (1300ºC*3h) 13Mp