Insulating Bricks for Sale | RS Refractory - High-Temperature Solutions Since 2003

About RongSheng Kiln Refractory

RongSheng is a leading manufacturer of refractories, heat-resistant products, and high-temperature insulation materials based in Xinmi, China. With over two decades of experience since 2003, we have built a reputation for excellence in quality and performance.

Our products are engineered for extreme environments and are used across a wide range of industries including steel plants, power stations, foundries, cement and lime production, glass manufacturing, ceramics, incinerators, chemical processing, sugar refineries, and petrochemical facilities.

2003

Founded

50+

Countries Served

ISO 9001

Certified

$Refractory Brick Manufacturing$

Our Product Range

Discover our comprehensive selection of high-performance refractory and insulation materials designed for durability, thermal efficiency, and chemical resistance in extreme industrial environments.

High Alumina Insulation Bricks

Lightweight, high-temperature insulation bricks with excellent thermal shock resistance and low thermal conductivity. Ideal for kiln linings and furnace insulation.

• Al₂O₃ content: 45–85%
• Max service temp: 1400–1700°C
• Low bulk density
• High compressive strength

Magnesia Alumina Spinel Brick

Superior resistance to slag penetration and thermal cycling. Widely used in steel ladle linings and cement rotary kilns.

• High MgO + Al₂O₃ content
• Excellent anti-slag properties
• Resists thermal spalling
• Service temp up to 1800°C

JM Series Insulation Brick

Lightweight insulating fire bricks available in JM23, JM26, JM28, and JM30 grades. Designed for energy-efficient industrial heating systems.

• JM23 to JM30 classifications
• Low thermal conductivity
• High porosity structure
• Easy installation and handling

Zircon Fire Brick

High-density zirconia-based bricks with exceptional resistance to molten glass and alkali attack. Ideal for glass tank checkers and superstructures.

• ZrO₂ + SiO₂ composition
• High refractoriness
• Low thermal expansion
• Resists glass corrosion

Silica Carbide Brick

High thermal conductivity and excellent abrasion resistance. Used in coke ovens, non-ferrous smelting, and high-wear zones.

• High SiC content
• Oxidation-resistant coating
• High strength at temperature
• Long service life

Ceramic Fiber Blanket

Flexible, lightweight insulation material with low heat storage and excellent thermal shock resistance. Suitable for furnace linings and expansion joints.

• Al₂O₃ + SiO₂ based
• Temp range: 1000–1400°C
• Low thermal lag
• Easy to cut and install

Clay Insulation Brick

Cost-effective, lightweight fireclay bricks for general insulation applications in boilers, heaters, and flues operating up to 1350°C.

• Made from refractory clay
• Combustible additive process
• Good volume stability
• Economical solution

$Refractory Castables$

Refractory Castables

High-strength, monolithic refractories including high alumina, corundum, mullite, and low cement types for complex shapes and repairs.

• Vibration or self-flow installation
• Steel fiber reinforced options
• Acid and alkali resistant
• Rapid curing formulations

Why Choose RongSheng Refractories?

🏭

ISO 9001 Certified

Full quality control system with staff-wide process monitoring ensures consistent product excellence.

🌍

Global Export

Products exported to Japan, Indonesia, Iran, Kazakhstan, and over 50 countries worldwide.

🔥

High Temp Resistant

Materials tested up to 1800°C for performance in extreme industrial environments.

🛠️

Custom Shapes

Special-shaped, anchor, curved, and checker bricks available for complex installations.

Frequently Asked Questions

What are insulating bricks used for?

Insulating bricks are used as thermal barriers in industrial furnaces, kilns, boilers, and reactors to reduce heat loss, improve energy efficiency, and protect structural components from high temperatures.

What is the difference between fire bricks and insulating bricks?

Fire bricks are dense and designed to withstand high temperatures and mechanical stress, while insulating bricks are lightweight with low thermal conductivity, primarily used for heat retention and energy savings.

Can I use insulating bricks in direct contact with flame?

Yes, many of our insulating bricks (like JM series and high alumina types) are designed for direct exposure to flame and high-temperature environments up to 1700°C.

Do you offer custom sizes and shapes?

Yes, we manufacture special-shaped, curved, anchor, and checker bricks to meet specific project requirements. Contact us with your drawings or specifications.

What industries use your refractory products?

Our products serve steel, cement, glass, ceramics, petrochemical, power generation, foundry, incineration, chemical, and sugar refining industries.

China Quality Suppliers fobcompany.info

Notice for Buyers: If you are a buyer, the above information is generated by AI collection and does not constitute any advice. If necessary, please visit the corresponding official website.

For Domain Owners: If you are the domain owner and do not want to be included by fobcompany.info, please contact [email protected] via your corporate email to cancel. We will cancel your inclusion within 3 business days.

如果您是域名所有者不想被fobcompany.info收录请用企业邮箱联系[email protected] 取消收录我们将在3个工作日取消您的收录

Service Request: If you are other domain and want to be included, please contact [email protected]

如果您是其他域名合作也请联系[email protected]

Premium Insulating Bricks for Industrial Applications