The JM30 insulation brick has a higher alumina content compared to other bricks in the JM series. It is a new type of energy-saving refractory material that exhibits stable performance at high temperatures. Ronghua has a well-established and advanced production line. This enables Ronghua to offer a wide range of products with various specifications to customers.
- Al2O3: ≥72%;
- Bulk Density: 1.0-1.1g/cm³;
- Refractoriness Under Load: 1550ºC;
- Cold Crushing Strength: 3.0-3.5MPa;
- Size: 230*114*65mm (standard)/And other sizes;
Free Sample Available to Any Country
High Working Temperature
Proper Thermal Stability
Proper Thermal Insulation
Good Thermal Shock Resistance
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Specifications of JM30 Insulation Brick
The JM30 insulation brick is a high-alumina refractory material with mullite (3Al₂O₃·2SiO₂) as the main crystalline phase. A small amount of organic material is added during the production process, and after firing, this insulation fire brick forms uniform porosity. Please refer to the detailed parameters.
| Item/Grade | KR-30 | |
|---|---|---|
| Type | A | B |
| Al2O3, % | ≥72 | ≥72 |
| Fe2O3, % | ≤0.55 | ≤0.55 |
| Bulk Density, g/cm³ | 1.0 | 1.1 |
| Reheating Linear Change, % | ≤-0.9 | ≤-0.7 |
| Temperature*12h | 1600℃ | |
| Cold Crushing Strength, MPa | ≥3.0 | ≥3.5 |
| Thermal Conductivity 350℃, W/(m·K) | 0.4 | 0.43 |
Choose Ronghua JM30 Insulation Bricks
- Can Be Directly Exposed to Flame;
- Precise Appearance and Dimensions, Accelerating Construction Speed;
- Customizable, Reducing the Number of Bricks and Joints.
- High-temperature Resistance;
- Low Thermal Conductivity, Significant Energy-Saving Effect;
- High Strength;
- Resistant to Molten Liquid Erosion;
- Good Thermal Stability;
- Complies with Standards;
Good Quality Control of JM30 Insulating Brick
- Select High-Quality Mullite;
- High-Temperature Firing Ensures Structural Stability of the Mullite Insulation Fire Bricks;
- Comprehensive Material and Physical Testing;
- Third-Party Testing Supported;
- Complete Pallet/Wooden Box Packaging;
- Factory Visit Support for Customers;
Ronghua Certificates
Application for JM30 Bricks
JM30 Insulating Bricks are primarily used in insulation layers and linings to reduce heat loss and improve energy efficiency. They are commonly applied in furnace tops, furnace walls, drying areas, and preheating zones, among others.
- Metallurgical Industry: Metallurgical hot blast stoves, blast furnaces, metal melting furnaces, hot blast stoves, etc.
- Petrochemical Industry: Petroleum cracking furnaces, ethylene cracking furnaces, tubular heating furnaces, gas generators, etc.
- Ceramic Industry: Ceramic roller kilns, tunnel kilns, sintering kilns, high-temperature shuttle kilns, push-plate kilns, and other equipment.
- Electric Porcelain Kilns: Electric porcelain shuttle kilns, electric porcelain drawer kilns, etc.
- Glass Industry: Glass crucible kilns, glass melting furnace regenerator chambers, etc.
- Other Industrial Furnaces: Various other high-temperature industrial furnaces.
We provide you with construction and maintenance guidance. If you have any questions, please feel free to contact us!
