Fireclay Insulation Brick

Fireclay insulation bricks from Sunrise Refractory are made of high-quality clay and sintered at high temperatures.

Max Service Temperature (℃): 1150~1400

Bulk Density (g/cm3): 0.55~1.5

Apparent Porosity %: 40~80

Cold Crushing Strength (MPa):≥ 1.5~6.0

Reheating Linear Change (%) ℃X 12H ≤ 1250℃ -0.5




   PRODUCT DESCRIPTION

Fire clay insulation bricks from Sunrise Company are made of high-quality clay and sintered at high temperatures. The use temperature of fireclay 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.


Application:

Featuring superior thermal insulation performance and outstanding volume stability, clay insulating bricks are widely adopted for industrial thermal insulation management. They effectively reduce heat loss and cut overall energy consumption, while imposing minimal load on furnace structures. Primarily serving as non-load-bearing backup insulation linings for high-temperature equipment, these bricks optimize thermal efficiency and protect external steel shells across diverse industrial scenarios, as listed below:

Steel & Metallurgy Industry

Applicable for hot blast stoves, reheating furnaces, annealing furnaces, heat treatment furnaces, coke ovens and industrial flue ducts.

Petrochemical Industry

Ideal for cracking furnaces, reforming furnaces, industrial boilers and primary process heating furnaces.

Ceramic Industry

Suitable for high-temperature firing equipment including roller kilns, tunnel kilns and shuttle kilns.

Cement & Building Materials Industry

Used as backup insulation layers for rotary kilns, lime kilns and kiln cooling zones.

Glass Industry

Commonly applied to glass melting furnaces (regenerator walls and bottom insulation) and glass annealing lehrs.


   TECHNIQUE DATA

Sunrise BrandNG-0.5NG-0. 6NG-0. 8NG-1.0NG-1.3NG-1.5
Max   Service Temperature (℃)115012001280130013501400
Bulk Density (g/cm3)0.550.60.81.01.31.5
Apparent Porosity %807060555040
Cold   Crushing Strength (MPa) ≥1.52.02.53.04.06.0
Reheating   Linear Change (%) ℃X 12H ≤1250℃ -0.51300℃-0.51350℃ -0.51350℃-0.91350℃-0.91350℃-0.9
Thermal conductivity(W/m.k) 400℃0.140.250.350.410.510.6
600℃0.160.290.450.43 0.610.71
800℃0.180.310.500.440.670.77
1000℃0.200.330.600.450.80.9
Al2O3 (%)374040404042
Fe2O3 (%) 1.01.51.51.522
SiO2445555555555


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