JM28 Insulation Brick

JM28 insulation brick has excellent thermal insulation performance under high-temperature applications. As a manufacturer, Kerui provides customers with furnace insulation solutions and a variety of product types. Additionally, Kerui can customize bricks according to the special requirements of customers. We offer competitive factory prices and quality assurance to our customers.

  • Al2O3: ≥64-66%;
  • Bulk Density: 0.8-1.0g/cm³;
  • Thermal Conductivity: 0.28-0.34 350℃, W/(m·K);
  • Cold Crushing Strength: 2.3-3.3MPa;
  • Size: 230*114*65mm (standard)/And other sizes;
Free Sample Available to Any Country
High Working Temperature
Proper Thermal Stability
Proper Acid Resistance
Good Thermal Shock Resistance
Kerui JM28 Insulation Bricks

Technical Parameters of JM28 Insulation Brick

Kerui JM28 insulation bricks are made from high-purity, high-quality raw materials. The insulation brick has excellent performance. Please see the parameters below.

Item/GradeKR-28
TypeABC
Al2O3, %≥64≥65≥66
Fe2O3, %≤0.75≤0.65≤0.65
Bulk Density, g/cm³0.80.91.0
Reheating Linear Change, %≤-1≤-0.8≤-0.7
Temperature*12h1500℃
Cold Crushing Strength, MPa≥2.3≥2.8≥3.3
Thermal Conductivity 350℃, W/(m·K)0.280.320.34

Kerui JM28 Insulation Bricks for Sale
JM28 Insulation Fire Bricks at Factory

Features of JM28 Insulating Bricks

  • High porosity;
  • Low bulk density;
  • Good thermal insulation performance;
  • High mechanical strength;
  • Low thermal conductivity;
  • Lightweight, energy-saving;
  • Excellent heat resistance;
  • Good dimensional stability at high temperatures;
  • Low heat storage, high thermal compressive strength;
  • High alumina, low iron, and alkaline flux content;
  • Corrosion-resistant, wear-resistant;
  • Accurate dimensions, easy to install;
  • Standard packaging design and custom packaging design.
JM28 Insulating Fire Bricks with Good Quality
JM28 Insulating Fire Bricks

Shapes of JM28 Bricks Suitable for Different Kilns

Kerui offers a variety of mullite insulating brick shapes. Common shapes include straight, arch, wedge, key, side skew, end skew, side feather, end feather, split, etc. These standard shapes can meet the routine requirements of most kilns.

If you need custom brick shapes, please contact Kerui. We can customize special-shaped bricks according to your drawings.

Insulation Bricks within Common Shapes and Sizes

Packaging and Shipment of JM28 Insulation Bricks

The standard packaging is fumigated pallets and wooden boxes. These packaging materials provide excellent protection during transport to prevent damage to the products. Additionally, Kerui can accommodate specific customization requests from customers, such as logo customization, etc.

For in-stock products, the delivery period is generally 15-30 days. Kerui’s professional sales managers will confirm a series of timelines with customers to ensure that the construction schedule is not affected.

Kerui Mullite Insulation Brick with Good Package
Delivery of Kerui Mullite Insulation Brick

Industries and Kilns Suitable for JM28 Insulation Brick

JM28 mullite insulation bricks, with their excellent high-temperature resistance, low thermal conductivity, and thermal shock resistance, are widely used in various high-temperature industrial environments.

  • Metallurgical Industry: Blast furnace bodies, furnace bottoms, hot blast furnace roofs, etc., It effectively extends the service life of the furnace lining and reduces heat loss.
  • Ceramics Industry: Tunnel kilns, roller kilns, etc., It provides a stable temperature field and improves product firing quality.
  • Petrochemical Industry: Cracking furnaces, hot blast stoves, etc., capable of withstanding high-temperature and high-pressure environments. It ensures safe production.
  • Glass Industry: Glass melting furnaces, regenerator chambers, etc. It effectively reduces heat loss and saves energy.
  • Power Industry: Boiler combustion chambers, etc.. It improves boiler thermal efficiency and reduces pollutant emissions.

Site Construction Diagram for JM28 Insulation Bricks

Application Fields of JM Series Insulation Bricks in High Temperature Industrial Furnaces

70% of Customers Choose Kerui Refractory Again

Many customers choose Kerui for its high-quality bricks and professional services, and Kerui truly deserves this trust. 70% of customers, after using our products, choose to repurchase Kerui bricks. This not only reflects the superior performance and durability of our products but also highlights our excellence in after-sales service and customer relationship management. Kerui bricks, with their exquisite craftsmanship, wide variety, and eco-friendly materials, have earned widespread recognition and praise from customers. We strive to provide better products and experiences for our clients, aiming to be their long-term trusted partners. View more pictures on Kerui Pinterest.

Kerui Refractory Provides Technical Guidance at Site
Kerui Refractory Provides Technical Guidance on Site