Andalusite High Alumina Brick | Refractory Brick Manufacturer

Product No.:ZKD-AH06

Product Type:High Alumina Refractory Brick

Service Temperature:Up to 1500°C

Bulk Density:2.40–2.45 g/cm³

Feature:Excellent Thermal Stability & Thermal Shock Resistance

Application:Steel Reheating Furnaces, Heat Treatment Furnaces & High-Temperature Kilns

Andalusite High Alumina Bricks
High-temperature refractory bricks designed for furnace linings requiring excellent volume stability, thermal shock resistance and high-temperature strength.

Ideal for

• Steel Reheating Furnaces

• Heat Treatment Furnaces

• High-Temperature Kilns

• Industrial Furnace Linings

Product Description
Andalusite High Alumina Bricks are refractory bricks manufactured from selected andalusite and high-alumina raw materials. During high-temperature firing, andalusite transforms into mullite, contributing to excellent volume stability and good resistance to thermal shock and high-temperature deformation.

Why Choose Andalusite High Alumina Bricks?

Volume Stability：Good dimensional stability during high-temperature service.

Thermal Shock Resistance：Suitable for applications involving repeated heating and cooling.

High-Temperature Strength：Maintains structural strength under demanding operating conditions.

Resistance to Deformation：Helps maintain furnace lining integrity during prolonged high-temperature operation.

Is Andalusite High Alumina Brick Right for Your Application?

Choose Andalusite High Alumina Bricks when your furnace lining requires:

✓ High operating temperatures

✓ Good thermal shock resistance

✓ Stable dimensions during long-term service

✓ Resistance to high-temperature deformation

✓ More demanding performance than conventional high alumina bricks

If your application mainly requires a general-purpose refractory brick, our standard High Alumina Bricks may be a more economical option.

Typical Application

Technical Specifications

Item	Pressed			Cast
Al₂O₃(%)	≥57	≥60	≥65	≥60
Fe₂O₃(%)	≤1.2	≤1.0	≤1.0	≤1.0
Bulk Density(g/cm³)	≥2.40	≥2.45	≥2.50	≥2.45
Apparent Porosity（%）	≤18	≤18	≤17	≤18
Cold Crushing Strength（MPa)	≥70	≥70	≥70	≥60
Thermal Shock Resistance（1000℃ water cycles）	≥25	≥20	≥15	≥25
Refractoriness Under Load（0.2MPa.T0.6/℃）	≥1560	≥1580	≥1650	≥1550
Permanent Linear Change on Heating（1450℃*2h）/%	-0.2~+0.2	-0.2~+0.2	-0.2~+0.2	-0.2~+0.2

Why Buy From ZKD Refractory?

Factory Direct

Manufactured in our own refractory production facility with direct factory supply.

Custom Manufacturing

Custom dimensions and special shapes can be produced according to drawings and requirements.

Controlled Production

Raw material preparation, pressing, drying, firing and inspection are controlled throughout the production process.

Flexible Supply

We can supply both standard bricks and customized products according to project requirements.

Export Support

Technical data, product documentation, packaging and export arrangements are available for overseas customers.

Standard & Custom Refractory Bricks

• Standard Sizes

230 × 114 × 65 mm

• Custom Shapes

Straight bricks

Wedge bricks

Arch bricks

Burner blocks

Special shapes

Send us your drawing or dimensions for a customized quotation.

Need Andalusite High Alumina Bricks?

Tell us your application, operating temperature, required dimensions and quantity. Our technical team will recommend a suitable specification and provide a quotation.

<a href="https://www.zkdrefractories.com/e_contact/">Request a Quote</a>