　　Silicon mullite brick is andalusite, brown corundum, high-alumina bauxite clinker, silicon carbide, and binder. After granulation and flour milling, they are mixed in a certain proportion, and then pressed into shape. , High strength, low thermal conductivity, strong flexibility, moderate density, high wear resistance products. Mainly used in cement rotary kiln transition zone and kiln mouth, lime rotary kiln, nickel iron rotary kiln and other kiln.

Physical and chemical indicators:

Item	Indicator
Item	GMH-1680
Al2O3 % ≥	66
SiC+SiO2 % ≥	30
Bulk Density g/cm³ ≥	2.65∽2.70
Refractory ℃ ≥	1800
0.2MPaLoad softening start temperature ℃ ≥	1680
Apparent porosity % ≤	20
Compressive strength at room temperature Mpa ≥	90
Thermal shock stability (1100 ℃, water-cooled) times ≥	15
Abrasion resistance at room temperature cm³ ≤	8.0

Silicon mullite brick

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