Professional suppliers of fire clay bricks
Negotiable /Ton
Min.Order:1 Ton
Zhengzhou Sunrise Refractory Co., Ltd.
Aluminum manufacturer of high alumina brick at a reasonable price
Aluminum silicate brick high alumina brick at a competitive price
used at bottom of glass furnace fire bricks for sale Big Fireclay Bottom Blocks PAQB
Refractory Mass Big Fireclay Bottom Blocks PAQB for glass fusing kiln
for glass fusing kiln types of fire bricks Big Fireclay Bottom Blocks PAQB
Physical and chemical index
Item | N-1 | N-2a | N-2b | N-3a | N-3b | N-4 | N-5 | N-6 | |
Refractoriness | SK | 31 | 30 | 30 | 29 | 29 | 28 | 27 | 23 |
°C | 1750 | 1730 | 1730 | 1710 | 1710 | 1690 | 1670 | 1580 | |
Chemical composition | Al2O3 ≥ | 40 | 39 | 34 | 34 | 32 | 32 | 31 | 31 |
Fe2O3 ≤ | 2.1 | 2.1 | 2.3 | 2.3 | 2.5 | 2.5 | 2.5 | 2.5 | |
Apparent Porosity% ≤ | 22 | 24 | 26 | 24 | 26 | 24 | 26 | 28 | |
Bulk Density g/cm3 ≥ | 2.15 | 2.10 | 2.10 | 2.05 | 2.05 | 2.05 | 2.00 | 2.00 | |
Cold Crushing Strength Mpa ≥ | 30 | 25 | 20 | 20 | 15 | 20 | 15 | 15 | |
0.2Mpa Refractoriness Under Load T0.6 °C ≥ | 1400 | 1350 | 1350 | 1320 | 1320 | 1300 | 1300 | 1300 | |
Reheating Linear Change(%) | 1400°C 2h | +0.1- -0.4 | +0.1- -0.5 | +0.2- -0.5 |
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1350°C 2h |
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| +0.2- -0.5 | +0.2- -0.5 | +0.2- -0.5 | +0.2- -0.5 |
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