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  • Fireclay Insulating Brick1
  • Fireclay Insulating Brick
  • Fireclay Insulating Brick

Fireclay Insulating Brick

  • N-1 Refractoriness, CN : 176
  • N-1 Apparent porosity,%≤ : 22
  • N-2a Refractoriness, CN : 174
  • N-2a Apparent porosity,%≤ : 24
  • Quantities can be customized

Product details:location : Home > Products > Fireclay Insulating Brick

Characteristics For  Fireclay Insulating Brick:
1. Low thermal conductivity;
2. High strength and resistance to corrosion;
3. Low heat capacity;
4. Low shrinkage after heavy firing;
5. High insulation;
6. High refractoriness;
7. Low density;
8. Good thermal shock resistance under high temperature;
9. Thermal insulation energy-saving effect is good.

Specification
Index Item
N-1 N-2a N-2b N-3a N-3b N-4 N-5 N-6
Refractoriness, CN 176 174 174 172 172 170 166 158
Refractoriness under load ,°C 2kg/cm2≥ 1400 1350   1320   1300    
Reheating linear change% 1400°C,2h +0.1
-0.4
+0.1
-0.5
+0.2
-0.5
         
1350°C,2h       +0.2
-0.5
+0.2
-0.5
+0.2
-0.5
+0.2
-0.5
 
Apparent porosity,%≤ 22 24 26 24 26 24 26 28
Compress strength,N/mm2≥ 30 25 20 20 15 20 15 15
Thermal shock resistance N-2b,N-3b must be tested and list the actual measuring data in the quality certification

Common sizes
Straight type Arch type Wedge type
L×W×H (mm) 230×114×65 230×114×75 230×114×32 220×110×60 220×110×50 220×110×40 220×110×30 L×W×H/h (mm) 230×114×65/55 230×114×65/45 230×114×65/59 220×110×65/50 220×110×75/65 220×110×60/40 L×W×H/h (mm) 230×114×65/55 230×114×65/45 220×110×75/65 220×110×60/40
Other sizes according to customer requirements

Typical Applications
1. Furnaces of metallurgy industry, heat treatment furnace
2. Furnaces of chemical industry and construction industry.
3. Furnace of incineration of garbage, recirculating fluidized bed furnace 


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