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Ceramic fiber alumina board is made from ceramic fibers which is the main raw materials, After fiber processing, slag removaling,then add some organic and inorganic binder, through vacuum forming process,to be made into high-strength fiber board.
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Products Items |
STD Grade |
High Pure Grade |
High Aluminium Grade |
Zr Grade |
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Specification Temperature (℃) |
1260 |
1260 |
1360 |
1430 |
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Working Temperature (℃) |
1050 |
1100 |
1200 |
1300 |
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Colour |
white |
white |
white |
white |
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Bulk Density (kg/m3) |
240 - 320 |
240 - 320 |
240 - 320 |
240 - 320 |
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Permanent Linear Shrinkage (24hr, Bulk Density 320kg/m3) |
- 4% max (1000℃) |
- 4% max (1100℃) |
- 4% max (1250)℃ |
- 4% max (1350)℃ |
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Thermal conductivity (w/m.k) (Bulk Density 285kg/m3)
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0.085 (400℃) |
0.085 (400℃) |
0.085 (400℃) |
0.085 (400℃) |
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0.132 (800℃) |
0.132 (800℃) |
0.132 (800℃) |
0.132 (800℃) |
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0.180 (1000℃) |
0.180 (1000℃) |
0.180 (1000℃) |
0.180 (1000℃) |
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Crushing Strength (Mpa) |
0.5 min |
0.5 min |
0.5 min |
0.5 min |
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Chemical Composition |
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Al2O3 |
45% - 46% |
47% - 49% |
52% -55% |
39% - 40% |
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Al2O3 + SiO2 |
96% - 97% |
98% - 99% |
99% min |
--- |
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Al2O3 + SiO2+ZrO2 |
--- |
--- |
--- |
99% min |
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ZrO2 |
--- |
--- |
--- |
10%-18% |
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Fe2O3 |
1.0% max |
0.5% max |
0.5% max |
0.2% max |
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Na2O + K2O |
0.5% max |
0.2% max |
0.2% max |
0.2% max |
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Regular Size (mm) |
900 x 600 x 20 ~ 50 mm, 1200 x 1000 x 25 ~ 50mm |
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