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high alumina fire brick 75%min refractory product
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Model No.︰ | 6902 |
Brand Name︰ | SD |
Country of Origin︰ | China |
Unit Price︰ | US $ 220 / mt |
Minimum Order︰ | 20 mt |
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High alumina brick is belong to silicon aluminate products with Al2O3 above 48%.it is mainly used in hot blast stove,blast furnace and EAf for steel making. Which has good thermal conductivity than fireclay brick.
Our ordinary high alumina brick as follows:
Item |
SK-36 |
SK-37 |
SK-38 |
Chemical component(%) |
Al2O3 |
55 |
65 |
75 |
Fe2O3 |
2.0 |
2.0 |
2.0 |
refractoriness℃ |
1770 |
1790 |
1790 |
softening temp under.0.2Mpa load oC |
1470 |
1500 |
1520 |
Bulk density(g/cm³) |
2.3 |
2.5 |
2.62 |
Apparent porosity(%)AP |
22 |
23 |
23 |
Cold crushing strength(Mpa) CCS |
44 |
49 |
53 |
Linear Change(%) |
1500 |
1500 |
1500 |
-0.4~+0.1 |
-0.4~+0.1 |
-0.4~+0.1 |
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Product Image
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