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Fireclay Insuation Brick

Fire clay insulation bricks from Sunrise Company are made of high-quality clay and sintered at high temperatures. The use temperature of fire clay insulation bricks is not more than 1200℃, with high-efficiency insulation, can not be in direct contact with fire.


They have the advantages of high strength, good thermal shock stability, small change of reheating line, small thermal conductivity, etc.
Fire clay insulation bricks are widely used in various kiln linings and insulation layers in metallurgy, machinery, ceramics, chemical industry, etc., which is an ideal energy-saving refractory brick.

Sunrise Brand NG-0.5 NG-0. 6 NG-0. 8 NG-1.0 NG-1.3 NG-1.5
Max Service Temperature (℃) 1150 1200 1280 1300 1350 1400
Bulk Density (g/cm3) 0.55 0.6 0.8 1.0 1.3 1.5
Apparent Porosity % 80 70 60 55 50 40
Cold Crushing Strength

(Mpa) ≥

1.5 2.0 2.5 3.0 4.0 6.0
Reheating Linear Change (%)   ℃X 12H ≤ 1250℃

-0.5

1300℃

-0.5

1350℃

-0.5

1350℃

-0.9

1350℃

-0.9

1350℃

-0.9

Thermal conductivity(W/m.k) 400℃ 0.14 0.25 0.35 0.41 0.51 0.6
600℃ 0.16 0.29 0.45 0.43 0.61 0.71
800℃ 0.18 0.31 0.50 0.44 0.67 0.77
1000℃ 0.20 0.33 0.60 0.45 0.8 0.9
Al2O3 (%) 37 40 40 40 40 42
Fe2O3 (%) 1.0 1.5 1.5 1.5 2 2
SiO2 44 55 55 55 55 55

fireclay insulation brick 6

fireclay insulation brick 7

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