Parameters of Standard Fire Clay Bricks for Sale
REBO manufactures standard fireclay bricks in grades SK-30, SK-32, SK-34, and SK-36. Each grade is produced under strict quality control and independently tested prior to shipment. This ensures reliable performance in steel, cement, glass, and ceramic industries. Bulk supply and custom specifications are available upon request. The following are the standard parameters of refractory fire bricks.
| Item/Grade | SK-30 | SK-32 | SK-34 |
|---|---|---|---|
| Al₂O₃, % | 30-34% | 34-38% | 38-42% |
| Fe₂O₃, % | 3.5 | 3.2 | 3.1 |
| Apparent Porosity, % | 24 | 24 | 23 |
| Bulk Density, g/cm³ | 2.05 | 2.1 | 2.15 |
| Cold Crushing Strength, MPa (≥) | 30 | 35 | 35 |
| Refractoriness underload, 0.2MPa, °C (≥) | 1300 | 1330 | 1350 |
| Refractoriness (≥) | 1650 | 1700 | 1760 |
| Thermal Expansion at 1000℃(%) (≤) | 0.6 | 0.55 | 0.55 |
REBO Fire Clay Refractory Bricks Types for High-Temp Solutions
By Brand

SK-30 Fire Clay Brick

SK-32 Fire Clay Brick

SK-34 Fire Clay Brick
By Al₂O₃ Content

Medium Duty Fire Clay Brick

High Duty Fire Clay Brick

Superior Clay Firebrick
By Application

Blast Furnace Fire Clay Brick

Hot Blast Stove Fire Clay Brick

Kiln Car Brick

Carbon Baking Furnace Brick
By Functional Grade

Dense Fire Clay Brick

Low Creep Fire Clay Brick

Low Porosity Fire Clay Brick

Anti-spalling Fire Clay Brick
By shape
The standard size is 230*114*65mm. Besides, we offer straight brick, wedge brick, arch brick, key brick, checker brick, anchor brick, sleeve brick, runner brick, etc.
Features of REBO Fire Clay Refractory Bricks
Withstand temperatures up to 1,760°C without deforming.
Good Thermal Stability
Resist cracking and spalling under repeated heating and cooling cycles.
Moderate Alumina Content
30-48% Al₂O₃ balances cost and performance effectively.
Low Thermal Conductivity
Retain heat efficiently, reducing energy loss in furnaces and kilns.
Resistant to slag, ash, and mild acidic or neutral atmospheres.
High Mechanical Strength
Maintain structural integrity under heavy loads at elevated temperatures.
Excellent Dimensional Accuracy
Uniform size and shape for easy, precise installation.
Wide Availability & Cost-Effective
Abundant raw materials make it one of the most economical refractory choices.
Customized Fire Clay Blocks Engineered for Your Industry
No two furnaces are the same, and your refractory lining shouldn’t be either. REBO customizes clay fire bricks for sale to match your exact working conditions, from operating temperature and chemical exposure to load-bearing requirements.
Customized Bricks
Specify what you need, including Al₂O₃ content, bulk density, brick shape, drawings, or dimensional tolerances. And we’ll engineer it to fit. This tailored approach ensures the best fire clay bricks price for your performance needs. Every custom order is independently lab-tested and fully traceable from raw material to finished product.
Customized Package
To improve your purchasing experience, we provide fully customized packaging for clay fire bricks. We can customize everything from your logo and shipping marks to specific packaging materials and reinforcement.
Global Projects, Proven Results
With a commitment to high-temperature excellence, REBO fire clay refractory have been the preferred choice for over 200 customers worldwide. From streamlining thermal efficiency to extending kiln lifespans, REBO deliver reliable refractory solutions tailored to the most demanding industrial environments, like lime, steel industry, metallurgy, glass, ceramics, and so on.
Serve Different Industries
Steel & Metallurgy Industry
Blast Furnace (BF): Furnace top, upper/middle stack (lower temperature, high wear-resistance areas).
Hot Blast Stove: Lower checker bricks in regenerators, lower walls, partition walls, and flue linings.
Ladle: Bottom bricks, safety (permanent/insulation) linings, and pouring systems (runner bricks, nozzle bricks).
Building Materials & Glass Industry
Glass Kiln: Lower checker bricks in regenerators, bottom/paving bricks, flues, and insulation layers.
Cement Industry (Shaft & Rotary Kilns): Preheating zone, calcining zone, kiln inlet, and preheater system linings.
Ceramic & Brick Kilns: Kiln car decks (Tunnel/Downdraft kilns), non-core firing zones, walls and roofs of preheating/cooling zones.
Non-Ferrous Metallurgy Industry
Copper, Lead, Zinc & Aluminum Smelting: Non-working linings of reverberatory furnace roofs/walls, flue linings of copper smelting furnaces, and insulation layer for aluminum reduction cells.
Chemical & Power Industry
Industrial Boilers: Combustion chamber walls, arches, superheated areas, flue linings, and hoppers.
Coking & Petrochemical Equipment: Waste gas sub-pan and small flues in coke ovens; secondary combustion chambers and flue linings in petrochemical heaters and waste incinerators.
REBO is Your Stable Partner for Large-Volume Supply
REBO runs a large modern clay brick factory for refractory materials. It has several automated high-temperature tunnel kiln lines. This large scale gives our clay bricks stable physical properties. It also helps us fill big orders for major infrastructure projects.
Our strength comes from quality, not just quantity. We use a strict three-tier inspection system from start to finish. Every batch faces tests for strength, heat resistance, and stability. These checks ensure full compliance with international standards.
We make 280,000 tons of refractory fire clay bricks each year. This strong capacity guarantees a steady supply at peak seasons. It prevents delays from raw material changes or production issues. Our customers see us as a reliable link in their supply chains.

REBO serves over 200 customers with deep customization skills. We can make special shaped bricks for cement kilns. We also adjust parameters for iron-making blast furnaces. Our team creates 1:1 solutions for a perfect fit every time.

Our factory sits near major ports in a connected industrial zone. We work with a mature network of reliable logistics partners. We provide full services from pallet packaging to export documents. These services move large shipments safely to your construction site. View factory video on REBO Youtube.

REBO keep a year-round inventory of common clay brick types. This stock serves emergency repairs or small-batch orders. A digital system allows us to ship quickly when you order. This cuts your repair downtime and reduces operational losses.
Accredited Quality & Compliance for REBO Fire Clay Bricks
REBO holds multiple authoritative international certifications. These credentials validate our superior product quality. Our entire fire clay bricks manufacturing process meets strict ISO standards. Independent third-party agencies conduct regular audits of our facilities.
Each certificate demonstrates REBO professional expertise. Our product performance reaches top-tier industry benchmarks. We strictly follow all global trade regulations. These compliance documents simplify your import procedures. They serve as a solid foundation of trust for long-term cooperation.

Tailored Engineering & Expert Consulting for Fire Clay Bricks
REBO assesses individual furnace conditions and lining requirements to deliver custom fireclay refractory solutions. We recommend the precise grade, custom dimensions, and ideal installation methods to maximize operational longevity and efficiency.
REBO high-performance fireclay bricks are engineered to excel under extreme thermal and mechanical stress. They provide dependable, heavy-duty lining solutions for industrial kilns, rotary furnaces, boilers, and complex thermal structures.
By utilizing a factory-direct supply chain, REBO guarantees rigorous quality control and highly competitive pricing. This end-to-end manufacturing advantage makes us a globally trusted partner for refractory materials across multiple heavy industries.
Products Working With Refractory Clay Bricks
Clay fire blocks work best as part of a complete lining system. Each companion product plays a specific role. And together, they deliver better performance, longer service life, and lower maintenance costs. REBO is one supplier that has everything you need.





