What is the self attribute of the refractory bricks/Fire Bricks?

What is the self attribute of the refractory bricks/Fire Bricks?

1. Chemical composition: the main components determine the quality and characteristics of the refractories

2. Volume density: weight per unit volume and large density, which indicates that the density is good and the strength may be high, but the thermal conductivity may be large.

3. The apparent porosity: no specific requirements, but as a manufacturer must strictly control the air vent.

4. load softening temperature: also called high temperature load to start the deformation temperature, this parameter is very important, marking material resistance to high temperature resistance.

5. Resistance to thermal shock: the ability to resist sharp changes in temperature and not to be destroyed

6. Compressive strength: maximum pressure ability to withstand (normal temperature)

7. Flexural strength: ability to withstand shear pressure

8. The linear change rate: also known as the heavy burning line change or the residual line change. It means that every volume changes during the same temperature change. If every expansion contraction is the same, we define a linear change rate of 0.