Apr. 19, 2021
The main function of insulation fire brick is to keep warm and reduce heat loss. Insulation fire bricks generally do not directly contact the flame, while refractory bricks generally directly contact the flame. Refractory bricks are mainly used to withstand the burning of flames. Generally refractories are divided into two types, namely unshaped refractories and shaped refractories.
Main differences between insulation fire brick and refractory brick
1. Insulation performance
The thermal conductivity of insulation fire bricks is generally 0.2-0.4 (average temperature 350±25°C) w/mk, while the thermal conductivity of refractory bricks is above 1.0 (average temperature 350±25°C) w/mk. So we can get the conclusion that the thermal insulation performance of insulation fire bricks is much better than that of refractory bricks.
The refractoriness of insulation fire bricks is generally below 1400 degrees, and the refractoriness of refractory bricks is above 1400 degrees.
Insulation fire bricks are generally light-weight insulation materials with density of 0.8-1.0g/cm3 and the density of refractory bricks is above 2.0g/cm3.
Next issue we will continue to introduce differences between insulation fire bricks and refractory bricks.Please stay tuned！