Factory price High alumina refractory brick for industrial kiln
Model Number: Hongtai
Minimum Order Quantity: 5 ton
Refractory anchor brick high alumina brick made in China
High alumina refractory brick is a kind of refractory material, the main component of this refractory brick is AL2O3. According to the content of Al2O3 in High alumina refractory brick, it is usually divided into three grades: Grade I:Al2O3 content>75%; Grade II:Al2O3 content is 60~75%; Grade III:Al2O3 content is 48-60%.
|International code name||SK36||SK37||SK38||SK40|
|Chinese code name||LZ-55||LZ-65||LZ-75||LZ-80|
|Apparent Porosity % max||22||23||23||24|
|Bulk Density g/cm3||2.25-2.35||2.35-2.45||2.45-2.55||2.55-2.65|
|Cold Crushing Strength (Mpa) min||44||49||54||65|
|Refractoriness under Load(℃) min||1400||1470||1500||1520|
|Permanent linear change %||1500℃×2h||1500℃×2h||1500℃×2h||1500℃×2h|
Raw material of High alumina refractory brick
According to different resource conditions and product requirements, the following types of raw materials can be used: It is mainly composed of high alumina bauxite; sillimanite group minerals (including kyanite, andalusite, sillimanite, etc.); synthetic raw materials such as industrial alumina, synthetic mullite, fused corundum, etc.
Uses of High alumina refractory brick
High alumina refractory brick are mainly used for lining blast furnaces, hot blast stoves, electric furnace roofs, blast furnaces, reverberatory furnaces, and rotary kilns. In addition, High alumina refractory brick are also widely used as open hearth regenerative checker bricks, plugs for pouring systems, nozzle bricks, etc. However, the price of High alumina refractory brick is higher than that of clay bricks, so it is not necessary to use High alumina refractory brick where clay bricks can meet the requirements.
Characteristics of High alumina refractory brick
1. Refractoriness of High alumina refractory brick
The refractoriness of High alumina refractory brick is higher than that of clay bricks and semi-silica bricks, reaching 1750~1790℃, which belongs to advanced refractory materials.
2. Load softening temperature of High alumina refractory brick
Because high-alumina products have high Al2O3, less impurities, and less fusible glass, the load softening temperature is higher than that of clay bricks. However, because mullite crystals do not form a network structure, the load softening temperature is still not as high as that of silica bricks.
3. Slag resistance of High alumina refractory brick
High alumina refractory brick contain more Al2O3, which is close to neutral refractory materials, and can resist the erosion of acidic slag and alkaline slag. Because it contains SiO2, the ability to resist alkaline slag is weaker than that of acidic slag.
Packaging of High alumina refractory brick
Production capacity: Our factory actively response to government environmental protection policy, we designed and built the fully automatic controlled high temperature gas tunnel kiln (1700℃), and got capacity of annual output 70,000 tons of high quality refractory products.
★Bricks: Fumigated wooden pallet with log paperboard covered and stainless steel band strapping, the whole outside is wrapped with thermoplastic film. Or carton packaging.
★Wooden pallet size: usually 92*92cm (standard brick)
★Castable: Ton bag with rain film and 25kg bags inside
★Or according to customer’s requirements
★Port of dispatch: Tianjin port; Qingdao port
★Delivery time: According to customer’s demand or two sides negotiate
We provide you
★Timely response: Timely response to your inquiry within 24 hours and provide solution.
★Competitive Price: Make the products competitive in your market.
★Free sample: Free sample are offered, trial order are accepted for quality evaluation.
★Strict quality control: We set Quality Management System, from the raw material to finished products, produce high quality products according to chemical & physical specifications strictly to satisfy customers’ needs.
★Fast delivery time: Within 3-30 days according to your quantity after receiving your advance payment.
★ Professional services: Provide pictures from order to delivery. Inspect report by our country’s designated authority and oversea services if necessary.
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Certification: (ISO 9001:2015)
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