Refractoriness (℃): | 1580< Refractoriness< 1770 |
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Feature: | Long Time Materials |
Type: | Refractory Material |
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Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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Payment Method: | |
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Initial Payment Full Payment |
Currency: | US$ |
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Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Light mullite brick refers to the high alumina refractory with mullite as the main crystalline phase. Generally, the alumina content is between 65% and 75%. In addition to mullite, the lower alumina content also contains a small amount of glass phase and cristobalite; Higher alumina content also contains a small amount of corundum. It is mainly used in hot blast furnace top, blast furnace body and bottom, glass furnace regenerator, ceramic sintering kiln, dead corner lining of petroleum cracking system, etc
Physical and Chemcial Index of JM 30Special Mullite Insulation Brick Refractory ProductItem | KY-JM23 | KY-JM26 | KY-JM28-1 | KY-JM28-2 | KY-JM30 | |
Service temperature ºC | 1260 | 1430 | 1540 | 1540 | 1650 | |
B.D g/cm3 ≥ | 0.5 | 0.8 | 0.9 | 0.95 | 1.05 | |
MOR Mpa ≥ | 0.7 | 1.1 | 1.5 | 1.6 | 2 | |
CCS ºC ≥ | 1.0 | 2.0 | 2.2 | 2.3 | 2.7 | |
PLC% | 0.3 | 0.4 | 0.5 | 0.5 | -- | |
ºC*8h | 1230 | 1400 | 1510 | 1510 | ||
Thermal expansion%≤ | 0.6 | 0.7 | 0.8 | 0.8 | 0.9 | |
Thermal conductivity | 400 ºC | 0.15 | 0.28 | 0.32 | 0.33 | -- |
600 ºC | 0.17 | 0.31 | 0.34 | 0.36 | -- | |
800 ºC | 0.19 | 0.33 | 0.36 | 0.39 | -- | |
1000 ºC | 0.24 | 0.35 | 0.39 | 0.42 | -- | |
Al2O3 % ≥ | 37 | 50 | 60 | 60 | 68 | |
Fe2O3 ≤ | 1.0 | 1.0 | 0.7 | 0.7 | 0.5 | |
SiO2 ≤ | 55 | 43 | 36 | 36 | 29 |
1, due to the low thermal conductivity characteristics of mullite insulation brick, light mullite brick has a good thermal insulation effect;
2, Mullite insulation brick has the characteristics of low hot melt and low thermal conductivity, can store little heat energy, so the energy saving effect is very obvious in intermittent operation;
3, low impurity content has a very low iron box oxide content such as alkali metal, so the fire resistance is high, and the high aluminum content makes it maintain good performance in the reduction atmosphere;
4, Mullite insulation brick high temperature compressive strength, to ensure the strength and stability of masonry.
5, the appearance of mullite insulation brick size is accurate, can speed up the masonry speed, reduce the use of refractory mud, ensure the strength and stability of the masonry, thus extending the life of the lining;
6, mullite light bricks are easy to process, can be processed into special shapes according to the needs of customers and drawings provided by customers, thereby reducing the number of bricks and joints.
Company File and Main Products:
Our total annual production capacity is about 100,000 tons of dense-shaped refractory product, and 100,000 tons of monolithic refractory product.
We have three tunnel kilns for silicon-aluminum dense bricks and one new plant for the monolithic refractory.
We're sure our custom-made products and professional services will bring you a stable quality supply and more profit.
Our Laboratory and R&D Center
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