Insulation Bricks

Insulation bricks have excellent thermal insulation performance. They can withstand temperatures as high as 1760ºC. These bricks are commonly referred to as IFB, insulating refractory bricks. Kerui offers the following hot types. These bricks are exported to 50+ countries. And our customers have good feedback for Kerui’ products.

Kerui Insulation Bricks for Sale

Fireclay Insulation Brick

Fireclay Insulation Brick

Al2O3: 20-45%;

Classification Temp: 1200-1300℃;

Bulk Density: 0.6-1.3g;

High Alumina Insulation Brick

High Alumina Insulation Brick

Al₂O₃: ≥48%;

Classification Temp: 1250-1350℃;

Bulk Density: 0.8-1.2g/cm³;

Mullite Insulation Brick

Mullite Insulation Brick

Al₂O₃: 42-72%;

Classification Temp: 1300-1450℃;

Bulk Density: 0.55-1.1g/cm³;

Silica Insulation Brick

Silica Insulation Brick

SiO₂: ≥91%;

Classification Temp: 1500-1550℃;

Bulk Density: 1.0-1.2g/cm³;

Alumina Bubble Insulation Brick

Alumina Bubble Brick

Al₂O₃: 85-99%;

Classification Temp: 1500-1700℃;

Bulk Density: 1.4-1.7g/cm³;

JM23 Insulation Brick

Al₂O₃: 42-48%;

Classification Temp: 1250℃;

Bulk Density: 0.55-1.0g/cm³;

JM26 Insulation Brick

Al₂O₃: 54-56%;

Classification Temp: 1400℃;

Bulk Density: 0.7-1.0g/cm³;

JM28 Insulation Brick

Al₂O₃: 64-66%;

Classification Temp: 1500℃;

Bulk Density: 0.8-1.0g/cm³;

JM30 Insulation Brick

Al₂O₃: ≥72%;

Classification Temp: 1600℃;

Bulk Density: 1.0-1.1g/cm³;

B1 Insulation Brick

B1 Insulation Brick

Al₂O₃: 20-45%;

Classification Temp: 1200-1300℃;

Bulk Density: 0.6-1.3g;

JM23 Insulation Brick

B5 Insulation Brick

Al₂O₃: 42-48%;

Classification Temp: 1250℃;

Bulk Density: 0.55-1.0g/cm³;

Standard and Other Sizes of Insulation Bricks

Stardand size: The standard size of Kerui insulation fire bricks is 230*114*65mm. Besides, Kerui Refractory also offers the following types and customized bricks for partners.
Other common brick types: Universal arc bricks, anchor bricks, grid bricks, composite bricks, wedge bricks, knife-axe bricks, arch bricks, etc.

Good Properties of Kerui Insulation Bricks

Exceptional Thermal Insulation Performance

Kerui insulation bricks for furnace feature extremely low thermal conductivity. This minimizes heat loss to the surroundings, leading to substantial energy savings and improved process efficiency.

Superior High-Temperature Capability

Engineered with high refractoriness, Kerui bricks maintain structural integrity and performance at sustained, elevated working temperatures.

Significantly Reduced Weight

Due to the carefully selected raw materials and inherent high porosity, Kerui insulation bricks possess a very low bulk density. This lightweight nature simplifies handling during transport and installation.

Good Chemical Stability

Kerui insulation bricks are formulated to resist chemical attack from common furnace atmospheres, alkalis, and acidic slags. This chemical inertness helps maintain their insulating properties and structural integrity over time.

Low Heat Storage

The combination of low density and high porosity results in low heat capacity. This allows furnaces and kilns to heat up more rapidly and cool down faster.

Easy to Cut

The insulation refractory bricks can be easily cut or shaped on-site to fit complex geometries or specific requirements, enhancing installation flexibility.

Adequate Mechanical Strength

While designed primarily for insulation, Kerui bricks possess sufficient cold crushing strength to withstand handling, installation stresses, and the load of overlying structures in typical furnace linings.

Cost-Effective Solution

The combination of competitive pricing (as a direct manufacturer), energy savings, reduced installation labor (due to lightweight), and extended service life (due to durability and thermal shock resistance).

Inspection of Kerui Fireclay Insulation Bricks In Transit To Turkey In May 2025

Checking Kerui Fireclay Insulation Bricks

2GP Fireclay Insulation Bricks Exported to South Korea

Quality Control of Kerui Insulation Bricks

Rich And High-Quality Materials

Kerui Refractory Factory is located in Xinmi, Zhengzhou City, Henan Province. This area is an important refractory raw material production area in China. This provides us with an advantage in obtaining high-quality raw materials stably and ensuring the basic performance of our products.

Pressing Workshops

Strict Quality Control System

Relying on local high-quality raw materials and independent production capabilities, Kerui has established a comprehensive, high-standard quality control system that runs through raw material procurement, production process to finished product testing.

Low Factory Price of High Temperature Insulation Bricks from Kerui

The price of thermal insulation bricks mainly depends on factors such as raw material costs, model, production process, bulk discounts, customization, and other conditions. As a manufacturer, Kerui Refractory provides customers with excellent quality and factory prices. Customers can expect to receive our refractory insulation bricks in approximately 20-35 working days. If you would like to receive a detailed price list, contact Kerui Refractory and send us your specific requirements.

Get Quality Kerui-Insulation-Brick

Kerui-Offers-Good-Insulation-Brick-Price

Professional Packaging Of Kerui Insulating Bricks

Packing

Kerui’s Packaging Advantages

Transit Safeguarding

Bricks are secured on fumigated wooden pallets to ensure damage-free logistics.

Customized Package

Reinforced custom crating solutions available for non-standard dimensions or fragile specialty bricks.

Comprehensive Product Traceability

All units feature standardized labeling with corporate branding, SKU identification, and manufacturing batch codes.

Industrial Applications of HFK Insulation Bricks

Steel Industry

Steel Industry

Lining for Electric Arc Furnaces
Ladles and Tundishes
Lining of Blast Furnaces

Cement Industry

Cement Industry

Rotary Kilns:
Preheaters and Coolers

Glass Industry

Glass Industry

Glass Melting Furnaces
Regenerators

Petrochemical Industry

Petrochemical Industry

Cracking Furnaces
Reformers

Non Ferrous Metal Industry

Non-Ferrous Industry

Lining for Aluminum Smelters
Copper Refining Furnaces

$Ceramics and Refractories$

Ceramics Industry

Tunnel Kilns
Shuttle Kilns

1000+ Global Customers Cooperate with KERUI

Kerui Refractory is a manufacturer with over 20 years of experience. We are highly specialized in production, export, and high-temperature industry solutions. Over 1000+ partners have chosen us, including RUSAL, CHALCO, ALBA, POSCO, PSM, etc. We maintain long-term and stable cooperative relationships with these clients. They have given high praise for our professionalism and products. View some video on Youtube.

Kerui is Your Trusted Partner for Every Need

Pre Sales Services

Manufacturer Direct Sales

Kerui Refractory is the original factory.

The annual output of refractory materials reaches 250,000 tons.

The production strength is strong and the production cycle is short.

Therefore, the delivery period is short.

In Sales Services

Research and Development

Research and Development Team

Kerui Refractory has 20+ research and development personnel.

Through years of research and innovation, we have overcome many industry challenges.

We are moving towards industry-leading levels.

After Sales Services

One-Stop Insulation Solution Service

Comprehensive Services

Kerui Refractory has technical team, delivery team, construction team, and after-sales service team.

These teams provide customers with
customized kiln insulation solutions, insulation brick selection,
shipping and transportation solutions, construction guidance,
maintenance guidance, and other one-stop services.

Manufacturer Direct Sales

Research and Development

One-Stop Solution Service

Please specify your requirement by referring to the following aspects:

What kind of refractory products are you planning to have?
What product details do you need? For example, size, quantity, using temperature, etc.
What industry of solution will meet your demand? (Key point)

Email:

sales01@keruirefra.com

Phone/WhatsApp/Wechat:

+86 173 3557 3148

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Contact Us

Please feel free to submit your inquiry using the form provided below, and we will provide you with a quote within 24 hours.

Whatsapp ID: +86 173 3557 3148

sales01@keruirefra.com

WeChat

WeChat ID: +86 173 3557 3148

+86 173 3557 3148