Description
High alumina castable is an unshaped refractory material made with high-alumina bauxite as the main raw material. According to different grades, the Al2O3 content ranges from ≥50% to ≥80%.
It has high refractoriness, good refractoriness under load, good thermal shock resistance and mechanical strength. It is suitable for furnace linings exposed to high temperature, mechanical wear and repeated thermal changes.
JHYRef high alumina castable is mainly used in blast furnaces, electric furnaces, rotary kilns and other high-temperature industrial equipment in metallurgy, building materials and chemical industries.
Advantages
High alumina castable is designed for high-temperature furnace lining applications where refractoriness, strength and thermal shock resistance are required.
Main advantages include:
- High refractoriness
- Good refractoriness under load
- Good thermal shock resistance
- Good mechanical strength
- Resistance to high-temperature erosion and mechanical wear
- Suitable for cast-in-place furnace lining construction
These properties help the castable maintain stable performance in industrial furnaces and kilns under high-temperature working conditions.
Specifications of High Alumina Castables
| Items | Grades | |||||
| AL-50 | AL-60 | AL-65 | AL-70 | AL-80 | ||
| ω(Al2O3) / % | ≥50 | ≥60 | ≥65 | ≥70 | ≥80 | |
| Refractoriness / CN | ≥170 | ≥172 | ≥172 | ≥172 | ≥178 | |
| Density /(g/cm3) | 110℃×24h | ≥2.15 | ≥2.30 | ≥2.40 | ≥2.45 | ≥2.65 |
| CMOR / MPa | ≥4.0 | ≥5.0 | ≥6.0 | ≥6.0 | ≥7.0 | |
| CCS / MPa | ≥25 | ≥30 | ≥35 | ≥35 | ≥40 | |
| HPLC / % | ±0.8 (1400℃×3h) | ±0.8 (1500℃×3h) | ||||
Customization
We can recommend suitable high alumina castable grades according to furnace lining drawings, working temperature, lining position and specific operating conditions. Customers can provide project details, and we will help select the appropriate castable solution.
Applications
High alumina castable is mainly used in blast furnaces, electric furnaces, rotary kilns and other equipment in high-temperature industrial fields such as metallurgy, building materials, and chemicals.
High alumina castables have high refractoriness, high mechanical strength and good thermal shock resistance. So they can resist high-temperature melt erosion, mechanical wear and frequent thermal shock, ensuring stable operation and long life of the equipment.
High Alumina Castable Manufacturer
JHYRef is a reliable high alumina castable manufacturer with experience in refractory material production and furnace lining applications. We focus on stable product quality, practical refractory solutions and responsive service for industrial furnace projects.
As a refractory castable supplier, we support customers with product selection, technical communication and project requirements. Our goal is to provide high alumina castable products that meet actual working conditions and help customers achieve stable furnace operation.
Our services: refractory technicians, refractory installation drawings, refractory bricks and castables, refractory masonry services, refractory mixes and precast cell, special shaped bricks, insulation materials, installation supervision, accident investigation and resolution, other customized services.
FAQ
High alumina castable is used for high-temperature furnace linings, such as blast furnaces, electric furnaces, rotary kilns and other industrial kilns.
The main advantages include high refractoriness, good refractoriness under load, good thermal shock resistance and good mechanical strength.
Yes. High alumina castable can be used in rotary kilns and other high-temperature industrial kiln linings, depending on the actual working conditions.
The suitable grade should be selected according to furnace type, working temperature, lining position, wear condition and thermal shock condition.
It should be stored in a dry and ventilated place and protected from moisture, rain and water before installation.
