Introduction
High aluminna aggregate, also known as bauxite, is mainly composed of Al2O3. High-alumina bauxite chamotte is an excellent refractory material processed from bauxite raw material through selection, high temperature roasting, crushing, sorting and other processes.
High alumina aggregate is also called refractory aggregate. It is a granular material processed on the basis of high-alumina bauxite chamotte through crushing, screening, iron removal and other processes. The Al2O3 content of high-alumina aggregate is generally more than 70%. It is the main raw material for making refractory materials, refractory bricks, castables, gunning materials, refractory furnace materials and other unshaped refractory materials.
Characteristics of High Alumina Aggregate
- High Aluminum Content
- Low Iron Content
- High Hardness
- Low Thermal Expansion Coefficient
- High Fire Resistance
- High Density
- Stable Thermochemical Properties
High Alumina Refractory Aggregate
Classification of High Alumina Aggregate
High alumina aggregate is mainly divided into different grade based on the Al2O3 content.
Grade |
AL2O3 |
Fe2O3 |
Ti02 |
CaO+MgO |
K20+Na20 |
Bulk Density g/cm3 |
Water Absorption % |
GL-88 |
≥88 |
≤1.5 |
≤4.0 |
≤0.4 |
≤0.4 |
≥3.15 |
≤4 |
GL-85 |
≥85 |
≤1.8 |
≤4.0 |
≤0.4 |
≤0.4 |
≥3.10 |
≤4 |
GL-80 |
≥80 |
≤2.0 |
≤4.0 |
≤0.5 |
≤0.5 |
≥2.90 |
≤5 |
GL-70 |
>70–80 |
≤2.0 |
– |
≤0.6 |
≤0.6 |
≥2.75 |
≤5 |
GL-60 |
>60–70 |
≤2.0 |
– |
≤0.6 |
≤0.6 |
≥2.65 |
≤6 |
GL-50 |
>50–60 |
≤2.5 |
– |
≤0.6 |
≤0.6 |
≥2.45 |
≤6 |
Application of High Alumina Aggregate
- High alumina aggregate is an indispensable raw material in refractory castables.
- It can be mixed with high-alumina cement, fine powder and in proportion to produce refractory concrete castables with very high strength;
- It is also the main raw material for making refractory materials, refractory bricks, castables, gunning materials, refractory furnace materials and other unshaped refractory materials.
Choose us, we not only have excellent products, but also perfect services. Here are a few reasons why your next partner just might be Tairui Refractory.
Complete specifications, customized processing. We are a manufacturer of refractory materials, with sufficient inventory and fast delivery
Source manufacturer, standardized production. Fully automatic and intelligent refractory production line, so as to ensure good product quality and stable quality.
R&D and production. The company is committed to the development, promotion and application of new refractory materials, new technologies and new products.
Timely after-sales service. Experienced engineering team, providing construction and technical support. To provide you with high-temperature kiln solutions.
Q: When will you arrange the production?
A: We usually arrange the production immediately after receiving your deposit payment if we have the item in stock. Otherwise, please confirm with us for lead time.
Q: What is your accepted payment type?
A: We only accept T/T, Paypal and Western Union. The letter of credit is also acceptable. Please communicate with our sales staff in advance to confirm whether your region supports it.
Q: Which logistic forwarder do you usually work with?
A: We work with EMS, TNT, UPS, FEDEX and other logistric forwarders. It is also possible to designate your own freight forwarder.
Q: More information?
A: If you have any questions during use, you can call our after-sales service hotline+8615136155678. Looking forward to cooperating with you
All of our export packages use wooden fumigation pallets specially used for export. The size of wooden pallet is generally 1.1m * 1.1m. Unshaped refractory materials generally use ton bags.
Bulk goods are generally transported by sea and containers. 20GP, 40GP and 40HQ containers are commonly used.
Samples or small packages of goods are generally transported by international express, and the common express delivery is as follows:
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