Silica Insulation Brick

SiO2% (≥) 88

Bulk Density (g/cm³)0.85-1.2

Refractoriness Under Load (℃) 1400-1520

Compression Strength (MPa).1-5

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Silica Insulation Brick

Silica insulation brick is mainly composed of silicate minerals and other auxiliary minerals. As a kind of acid-refractory material, the brick can resist acid gas erosion. And it is relatively stable in volume for long-term use at high temperatures.

Item	GG-0.8	GG-1.0	GG-1.1	GG-1.15	GG-1.2
SiO2 %	≥88	≥91	≥91	≥91	≥91
Bulk Density g/cm3	≤0.85	≤1.00	≤1.10	≤1.15	≤1.20
Compression Strength Mpa	≥1.0	≥2.0	≥3.0	≥5.0	≥5.0
Refractoriness Under Load T0.6 ℃	≥1400	≥1420	≥1460	≥1500	≥1520
Permanent Linear Change On Reheating（%）1450℃X2h	0～+0.5	0～+0.5	0～+0.5	0～+0.5	0～+0.5
20－1000℃ Thermal Expansion 10-6/℃	1.3	1.3	1.3	1.3	1.3
Thermal Conductivity (W/MK) 350℃	0.55	0.55	0.6	0.65	0.7