SK36 firebrick has an excellent balance between refractoriness, strength, erosion resistance and cost. This type of refractory brick is ideal for projects with limited budgets but requiring high-performance refractory bricks, especially for furnace environments with temperatures ranging from 1200 to 1380°C. If you are troubled by unstable kiln operation, short brick lifespan and high maintenance costs, SK36 brick may be the solution you need.
SK36 Firebricks for Sale
Parameter of SK36 Firebrick
Is your furnace frequently shut down for maintenance due to poor-quality refractory bricks?
Are you facing budget constraints because the supplier’s refractory bricks are too expensive?
If you have similar problems, then SK36 bricks are the product you’re looking for.
For medium and high temperature industrial kilns, such as furnaces in the steel industry, preheaters in the cement industry or kiln cars in the ceramics industry, SK36 bricks are an ideal choice. This product can avoid both low-level performance defects and high-level budget waste. The following are technical details for your reference.
| Item/Grade | SK-36 | |
|---|---|---|
| Al2O3, % | 48-55 | |
| Fe2O3, % | 2.5 | |
| Apparent Porosity, % | 22 | |
| Bulk Density, g/cm³ | 2.20-2.25 | |
| Refractoriness (SK) | ≥ | 1780 |
| Refractoriness Under Load, 0.2MPa, °C | ≥ | 1380 |
| Cold Crushing Strength, MPa | ≥ | 45 |
Benefits of SK36 Refractory Brick
High Cost-Effectiveness
Among common high-alumina brick series, SK36 offers a more economical unit price while meeting the performance requirements of most medium- and high-temperature furnaces. For manufacturers with limited budgets who still require stable refractory materials, it is almost the most cost-effective choice for achieving the most stable performance. Customers can use this brick to cover most critical areas, reducing unnecessary cost waste.
Extended Furnace Lifespan
SK36 bricks have a dense structure, making them less prone to pulverization, slagging, or cracking under high-temperature environments. A longer furnace lining life means fewer downtimes, lower maintenance costs, and more stable production line operation. For factories primarily engaged in continuous production, this translates into tangible capacity increases and profit growth.
Procurement Friendly
As one of the most widely used high-alumina brick models in factories worldwide, SK36 is readily available, especially the standard size of 230×114×65mm, which is almost always in stock. You don’t need to wait for long production cycles or worry about stockouts. Furthermore, SK36 is applicable to most kiln conditions, making it the safest and most reliable choice for purchasing departments, significantly reducing the difficulty of selection and procurement.
Installation-Friendly
SK36 is one of the most familiar and frequently used high-alumina brick models among engineers worldwide. Construction teams have extensive experience in laying methods, expansion joint control, and compatibility with other materials. Compared to certain special materials or irregularly shaped bricks, using SK36 allows for faster installation, lower communication costs, and reduces the risk of construction errors.
Reasons to Choose Kerui SK36 Refractory Brick
1. High-Quality Materials, Consistent Batch Quality
Kerui SK36 high-alumina bricks come from China’s largest refractory material industrial belt, ensuring stable raw materials, mature processes, and strong batch consistency. Each batch comes with:
Chemical Composition Report
Bulk Density/Apparent Porosity Test Report
High-Temperature Load Softening Point Data
Thermal Shock Performance Test Results
These tests ensure that every brick received by the customer truly meets engineering standards and maintains stable performance under actual working conditions.
2. Comprehensive International Certifications, Supporting Global Projects (ISO/CE/SGS)
Kerui’s SK36 high-alumina bricks are exported to over 50 countries and have long-term recognition from customers in Europe, the Middle East, Southeast Asia, and other markets.
Materials with international certifications are easier to audit, helping you secure EPC projects or government projects faster.
In addition, we can quickly provide:
Certificate of Origin
Third-Party Quality Inspection Report
Packaging and Container Loading Solutions
Customs Clearance and Export Experience Support
Ensuring a smooth and error-free procurement process. 3. High Capacity and Fast Delivery (30-50% Faster than Industry Average)
Kerui boasts multiple automated high-temperature tunnel kiln production lines, maintaining a year-round inventory of SK36 bricks, ensuring ample supply of standard sizes.
Contact time for standard SK36 bricks is approximately 50% faster than the industry average.
Custom mold making is available for wedge-shaped bricks, channel-shaped bricks, and irregularly shaped bricks.
Non-standard sizes can also be produced within a short lead time.
Ideally suited for time-sensitive EPC companies, contractors, and end-user factories.
4. Professional Furnace Lining Solutions (More Than Just Brick Sellers, We Are Technical Partners)
Leveraging 20+ years of industry experience, Kerui provides not only materials but also professional engineering services:
Precise Furnace Type and Material Selection
SK36 Furnace Lining Structural Design
Installation and Expansion Joint Recommendations
Project Construction Guidance
Usage and Maintenance Recommendations
Conclusion: SK36 is one of the most highly regarded high-alumina bricks among customers.
SK36 has become the standard configuration in the medium-temperature kiln industry.
Customers choose it not because it’s “cheap,” but because it offers the best overall performance in terms of refractoriness, cost-effectiveness, stability, delivery time, and ease of construction.
If you are currently selecting a brick, SK36 is the most reliable choice.
