Silica Insulation Brick

  • Silica Insulation Brick

Product Description And Parameters

Composition:SiO2

Application:Heat-insulating layer of various of high temperature furnaces

Raw Material:Quartz sand

Size:As your requirements

Capacity:800 tons per month

Silica insulation brick refers to a kind of refractory products made from silica as the main material and with SiO2 content not less than 91%.The main mineral composition of silica insulation brick is phosphorite and cristobalite.

Features
1. High refractoriness under load.
2. Energy-saving.
3. Less heat radiation loss.
4. Low thermal conductivity.

Application
Silica insulation brick has excellent fire resistance, with only small residual expansion, and good thermal stability. They are suitable for industrial furnaces such as coke ovens, hot blast furnaces, glass furnaces, and carbon furnaces.

Item

Silica Insulation Brick

GGR-1.0

GGR-1.10

GGR-1.15

GGR-1.20

SiO2(%)

≥91

Bulk Density (g/cm3)

1.0

1.10

1.15

1.20

Cold Crushing Strength (MPa)

≥2

≥3

≥5

≥5

Refractoriness Under Load  (0.2MPa)(℃)

1400

1420

1500

1520

Permanent Linear Change (1550℃*2h)(%)

--

--

0.5

0.5

Permanent Linear Change (1450℃*2h)(%)

0.5

0.5

--

--

Coefficient of Thermal Conductivity,Average Temperature 350+10℃ w/(m·k)

0.55

0.60

0.65

0.70

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