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Sillimanite brick
The sillimanite brick is made of sillimanite minerals.After high temperature calcination, it become mullite and dissociate silicon dioxide.Generally use high-temperature firing method and slurry casting method to produce.
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Silica brick
Silica brick is made of quartz stone material, the content of SiO2 is above 96%,it has good resistance to acid slag and good heat conductivity. And the refractoriness is 1690~1710°C,RUL is beyond 1680°C.
SiO2 has different types of crystals in different temperatures, and the transform between the crystals will cause the change of the bulk. So there is a close contact between the changes of S...Read More
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Lightweight fireclay brick
Al2O3 content is 30%-48%, SiO2 content is 50%-65%, and a small number of alkali metals, alkaline earth metal oxides, etc.
Mineral composition is usually mullite, quartz and glass phase. Its refractoriness is 1580-1750°C, refractoriness under load is 1250-1450 °C, line expansion coefficients is low, with good thermal shock resistance and strong ability to resist erosion acid slag.Read More
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Fireclay checker brick
1.Made by flint clay clinker and binder,through Crushing,Mixing,Shaping,Drying and high temperature Sintering.
2.Al2O3 content is 30%-48%,SiO2 content is 50%-65%,and a small number of alkali metals,alkaline earthmetal oxides TiO2,Fe2O3 etc.
3.Mineral composition is usually mullite, quartz and glass phase.Read More
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Sillimanite brick
The sillimanite brick is made of sillimanite minerals.After high temperature calcination, it become mullite and dissociate silicon dioxide.Generally use high-temperature firing method and slurry casting method to produce.
Read More
The sillimanite brick is made of sillimanite minerals.After high temperature calcination, it become mullite and dissociate silicon dioxide.Generally use high-temperature firing method and slurry casting method to produce.
Sillimanite brick feature:
Sillimanite product:
Forehearth brick, trough, rotating tube, spout, stirrer, punch, barrel, guard brick, burner brick, beam plate brick, etc.
Item
GXS-50
GXS-60
GXS-62
Chemical composition
Al2O3
≥50
≥60
≥62
SiO2
≤45
≤38
≤33
Fe2O3
≤1.2
≤1.0
≤1.0
Apparent Porosity%
≤18
≤18
≤17
Bulk Density g/cm3
≥2.4
≥2.5
≥2.55
Cold Crushing Strength Mpa
≥45
≥50
≥60
0.2Mpa Refractoriness Under Load T0.6 ℃
≥1550
≥1600
≥1650
Permanent Linear Change On Reheating (%)1500℃X2h
±0.1
±0.1
±0.1
Thermal Shock Resistances 100℃ water cycles
≥20
≥20
≥20
Reversible Thermal Expansion 1000℃
0.55
0.6
0.6
Pyrometric Cone Equivalent S.C. SK
35
36
38