Insulating Firebrick is made from high purity refractory clays and other raw materials, with light weight and mini-porosity well distributed. Each brick is machined to precise tolerances on all six faces.
Characteristic:
- Low thermal conductivity
- Low heat storage
- High spalling resistance
- High hot compressive strength
- Low iron oxide and alkali flux content
- Accurate dimensions
Application:
- Hot face refractory lining for furnaces, kilns, flues, refining vessels and heaters, regenerators, gas producers and similar high temperature industrial equipment.
- Back up insulation for furnaces, kilns and similar high temperature industrial equipment.
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TK-23
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TK-26
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TK-28
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TK-30
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TK-3000
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Classification temperature ( °C)
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1260
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1425
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1538
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1550
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1600
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Bulk density (Kg/m3)
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520
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780
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880
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1000
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1050
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Reheat shrinkage |
0.20 (1300)
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0.40 (1400)
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0.40 (1500)
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0.38 (1550)
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0.38 (1600)
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Cold crushing strength (ASTM C93, MPa)
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1.1
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1.6
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2.1
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2.0
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2.2
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Modulus of rupture (ASTM C93, MPa)
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0.8
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1.2
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1.5
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1.8
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2.0
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Thermal expansion at 1000 ° C (%) (JIS R2617, °C)
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0.46
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0.47
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0.48
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0.48
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0.48
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Thermal conductivity Kcal/mh °C (W/mK) ,ASTM C201,
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Mean 400 °C
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0.15
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0.26
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0.31
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0.42
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0.45
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Mean 600 °C
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0.17
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0.29
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0.34
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0.44
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0.47
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Mean 800°C
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0.19
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0.32
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0.36
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0.45
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0.49
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Mean 1000°C |
0.21
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0.34
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0.38
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0.48
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0.52
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Chemical analysis - JIS R2216
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Al2O3
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41
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56
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65
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73
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75
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SiO2
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53
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39
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32
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25
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22
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Fe3O2
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0.8
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0.7
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0.6
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0.5
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0.5
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CaO
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0.7
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0.4
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0.3
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0.2
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0.1
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Standard Packing
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230*114*65 / 75, 10pcs / pack for standard size
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