High Aluminum Hanging Bricks are specially designed high-alumina refractory bricks used to support and stabilize refractory linings in high-temperature industrial furnaces and kilns. Also known as High Alumina Hanging Bricks or refractory hanging bricks, they are designed with specialized shapes that allow them to work with metal hanging or anchoring components in furnace roofs and walls.
These refractory bricks provide a reliable structural connection between the furnace steel structure and refractory lining. Their high alumina content, strong mechanical properties, and excellent high-temperature stability make them suitable for demanding furnace environments where conventional refractory bricks may not provide sufficient structural support.
High Aluminum Hanging Bricks can help reduce refractory lining displacement, peeling, cracking, and collapse caused by thermal expansion, vibration, mechanical stress, and long-term high-temperature operation.
At Xintai Refractory, we manufacture High Aluminum Hanging Bricks in different grades, shapes, and dimensions. Standard specifications and customized solutions are available according to furnace drawings, installation requirements, and operating conditions.
Technical Specifications
| Project | LZ-55A | LZ-55B | LM-75A | LM-75B |
|---|---|---|---|---|
| Al₂O₃ % ≥ | 55.0 | 55.0 | 75.0 | 75.0 |
| CaO % ≤ | 2.0 | 2.0 | 2.0 | 2.0 |
| Normal Temperature Compressive Strength MPa ≥ | 50 | 50 | 55 | 55 |
| Load Softening Starting Temperature ℃ ≥ | 1450 | 1450 | 1550 | 1550 |
| Apparent Porosity % ≤ | 22 | 24 | 21 | 23 |
| Bulk Density g/cm³ | 2.30 | 2.30 | 2.60 | 2.60 |
Key Features
- High Alumina Content: Available grades contain 55–75% Al₂O₃ for reliable high-temperature refractory performance.
- High Mechanical Strength: Cold crushing strength reaches 50–55 MPa, providing stable support for refractory structures.
- Excellent High-Temperature Stability: Load softening starting temperatures of 1450–1550°C help maintain structural integrity under high-temperature conditions.
- Strong Hanging Performance: Specially designed shapes allow the bricks to work with metal hanging systems and refractory anchoring components.
- Good Thermal Shock Resistance: Suitable for furnace environments involving repeated heating and cooling cycles.
- Strong Peeling Resistance: Helps maintain the integrity of furnace roofs and walls under thermal and mechanical stress.
- Corrosion Resistance: Provides good resistance to hot gases and corrosive furnace atmospheres.
- Multiple Grade Options: LZ-55A/B and LM-75A/B grades are available for different operating requirements.
- Custom Shapes and Sizes: Customized dimensions and special profiles can be manufactured according to technical drawings.
Typical Applications
High Aluminum Hanging Bricks are widely used in high-temperature industrial furnaces, kilns, and refractory lining systems where secure mechanical support is required.
Typical applications include:
- Industrial furnace roofs
- Furnace tops
- Furnace walls
- Heating furnaces
- Electric furnaces
- Blast furnaces
- Hot blast furnaces
- Rotary kilns
- Reverberatory furnaces
- Heat treatment furnaces
- Metallurgical heating equipment
- Other high-temperature industrial kilns
They are particularly suitable for furnace roof and wall structures where refractory linings need to be mechanically supported and protected against displacement or collapse.
Production Details
Xintai High Aluminum Hanging Bricks are manufactured using carefully selected high-alumina refractory raw materials. The production process includes raw material preparation, accurate batching, mixing, molding, drying, and controlled high-temperature firing.
Special attention is given to dimensional accuracy because hanging bricks must fit correctly with the surrounding refractory lining and metal support system. Quality control is conducted throughout production to monitor chemical composition, bulk density, apparent porosity, cold crushing strength, and load softening performance.
Customized shapes and dimensions can be produced according to customer drawings. This allows the finished hanging bricks to match different furnace structures and installation requirements.
Packing and Shipping Details
Packaging: Packed in strong wooden pallets with protective wrapping
Shipping Time: 7–15 working days after order confirmation
Storage: Keep in dry, ventilated area to avoid moisture absorption
Customization: Shapes and sizes can be tailored to customer specifications
Frequently Asked Questions (FAQ)
Q1: What are High Aluminum Hanging Bricks?
High Aluminum Hanging Bricks are specially shaped high-alumina refractory bricks used to support and stabilize refractory linings in furnace roofs, walls, and other high-temperature structures. They are designed to work with metal hanging or anchoring systems.
Q2: Are High Aluminum Hanging Bricks the same as High Alumina Anchor Bricks?
They can refer to the same or closely related type of specialized refractory brick, depending on the furnace design and terminology used by the manufacturer. Both are designed to provide mechanical support and anchoring for refractory linings.
Q3. What is the Al₂O₃ content of these hanging bricks?
Xintai offers grades containing 55–75% Al₂O₃. LZ-55A/B grades contain at least 55% Al₂O₃, while LM-75A/B grades contain at least 75% Al₂O₃.
Q4: What is the maximum service temperature?
The maximum service temperature can reach up to 1600°C, depending on the grade, furnace design, and actual operating conditions.
Q5: Can High Aluminum Hanging Bricks be customized?
Yes. Xintai can manufacture customized hanging bricks according to customer drawings, including different shapes, dimensions, grades, and installation configurations.
Q6: Where are High Aluminum Hanging Bricks used?
They are commonly used in industrial furnace roofs, furnace tops, furnace walls, heating furnaces, electric furnaces, blast furnaces, rotary kilns, reverberatory furnaces, and other high-temperature refractory structures.
