Refractory Bricks at Low Price - 7-15 Days Shipment

Kerui provides refractory bricks as linings for high temperature kilns, furnaces, equipment etc. There are over 30 types of refractory bricks for sale to withstand extreme heat and chemical corrosion. Kerui factory that produces these refractory bricks has more than 20 years of experience and a lot of high-end equipment, including 3 tunnel kilns and a fully automatic batching system. Over the past few decades, we have accumulated many customers at home and abroad. Kerui refractory bricks have become a stable supply for well-known companies in the industry, including RUSAL, CHALCO, ALBA, POSCO, and PSM.

Kerui Refractory Bricks List

Fire Clay Brick

Al2O3: ≥30-45%；

R. U. L.: 1250-1420ºC;

Bulk Density: 1.9-2.22g/cm³;

High Alumina Brick

Al2O3: ≥48-80%;

R. U. L.: 1420-1530ºC;

Bulk Density: 2.25-2.7g/cm³;

Silica Brick

SiO2: ≥94-96%;

R. U. L.: 1640-1660ºC;

Bulk Density: 2.34-2.35g/cm³;

Mullite Brick

Al2O3: ≥70-75%;

R. U. L.: 1680ºC;

Bulk Density: 2.6-2.7g/cm3;

Andalusite Brick

Al2O3: ≥69%;

R. U. L.: ≥1450-1700ºC;

Bulk Density: 2.30-2.70g/cm³;

Corundum Brick

Al2O3: ≥80-99.3%;

R. U. L.: ≥1700ºC;

Bulk Density: 2.8-3.2g/cm³;

Sillimanite Brick

Al2O3: ≥60-65%;

R. U. L.: 1600-1650ºC;

Bulk Density: 2.3-2.5g/cm³;

Corundum Mullite Brick

Al2O3: ≥70-90%;

R. U. L.: ≥1630-1700ºC;

Bulk Density: 2.55-2.90g/cm³;

Chrome Corundum Brick

Al2O3: ≥68-85%;

R. U. L.: 1700ºC;

Bulk Density: 3.1-3.5g/cm³;

Silicon Nitride Combined Silicon Carbide Brick

SiC: 66~80%;

C. C. S.: 220-580MPa;

Bulk Density: 2.72-2.80g/cm³;

Magnesia Brick

MgO: ≥91.0-97.0%;

R. U. L.: ≥1560-1700ºC;

Bulk Density: 2.90-3.00g/cm³;

Magnesia Chrome Brick

MgO: ≥45-65%;

R. U. L.: 1530-1650ºC;

Bulk Density: 3-3.08g/cm³;

Magnesia Carbon Brick

MgO:≥70-82%;

C. C. S.: 30.0-50.0MPa;

Bulk Density: 2.87-3.15g/cm³;

Magnesia Alumina Spinel Brick

MgO: ≥80%;

C. C. S.: ≥50MPa;

Bulk density: ≥2.9g/cm3;

Magnesia Iron Spinel Brick

MgO: ≥85%;

C. C. S.: ≥50-55MPa;

Bulk density: ≥2.90-2.95g/cm3;

AZS Brick

ZrO2: 33.5-41%;

Vitreous Phase Exudation: 1.5-3.0%；

Bulk Density: 3.8-4.05g/cm³;

Sintered Zirconia Corundum Brick

ZrO2: ≥16-32%;

R. U. L.: ≥1580-1630ºC;

Bulk Density: ≥2.70-3.2g/cm³;

High Chrome Brick

Cr2O3: ≥75-95%;

C. C. S.: ≥120MPa;

Bulk Density: ≥3.9-4.25g/cm³;

Zircon Brick

ZrO2: ≥15-65%;

R. U. L.: ≥1550-1650ºC;

Bulk Density: ≥2.7-3.7g/cm³;

Silicon Carbide Brick

SIC: ≥20-90%;

R. U. L.: ≥1750ºC;

Bulk Density: ≥2.6g/cm;

Aluminum Silicon Carbide Brick

Al2O3: ≥60-65%;

R. U. L.: ≥1550-1650℃;

Bulk Density: 2.55-2.65g/cm³;

Inquiry Email

Different Shapes of Refractory Products

Standard Refractory Brick: 230x114x65mm

-Most customers take 230x114x65mm as the standard size of wholesale refractory bricks;
-Kerui Refractory supports customized sizes according to the standards you provide;
-Standard refractory bricks China are in sufficient stock, please contact us to check more details;
-Buy refractory bricks with common special-shaped bricks may be in stock, including: checker bricks, arch bricks, knife bricks, axe bricks, anchor bricks, curved bricks, ladle
bricks, and so on.

Special Shaped Refractory Bricks

– 21 years of manufacturing experience of shaped refractory manufacturing;
– 1000+ moulds covering the common shapes of refractory bricks on the market;
– 400–1000 tons hydraulic presses machine and CNC precision cutting to ensure ±1mm tolerance.
– The size qualification rate and acceptance success rate of refractory brick wholesale reached 99.5%.

Real Reviews of Kerui Refractory Bricks

Over the past few decades, Kerui has exported refractory products to more than 50 countries and regions. Due to excellent refractory bricks properties and professional service, we have won the trust and praise of customers. Whether it is the partners of leading enterprises or the needs of individual end users, Kerui always treats them with a rigorous attitude. Kerui professional service is not limited by time and place. The following is the real feedback of some customers on Kerui refractory bricks for your reference.

500 Tons of High Alumina Brick for Hot Blast Furnace in Indonesia

Magnesia Brick for Cement Kiln in Mexico

AZS Bricks for Glass Furnace in the Netherlands

Fire Clay Bricks and High Alumina Brick for Steel Ladle in the USA

Quality Inspection of KERUI Refractory Bricks

Certificates

KERUI refractory bricks for sale are ISO 9001 certified and SGS tested. We have supplied more than 10,000 tons of refractory products to leading companies in the steel, cement and glass industries. The use of refractory bricks has verified long-term stability. For refractory bricks are used in large projects, the procurement requires qualification review and refractory with international certifications such as ISO, CE, SGS, etc. are more likely to win bids.

Strict Quality Inspection

From raw material procurement, mixing, molding, loading, sintering, picking, etc., every step has strict quality control. Kerui workers will select and inspect each refractory brick individually, and all employees are veterans with decades of experience, enabling them to promptly handle any quality issues. Before entering the packaging workshop for quality inspection, Kerui quality inspection department will conduct random inspections again. Only refractory bricks that fully meet the standards can enter the next process.

Independent Laboratory

The independent laboratory help Kerui provide authentic and traceable data assurance. The refractory brick material source, proportion and performance test data of each batch of brick refractory is traceable. The laboratory equipment includes trace element rapid analyzer, re-burning test furnace, cold crushing pressure test machine and so on. These are the basis for Kerui to carry out product upgrades, formula optimization and performance verification.

Fully Automatic Production Line

In order to achieve more stable quality and higher efficiency, Kerui introduced more automated production lines. These upgrades help to make the ingredients more accurate and the sintering more stable. The automated tunnel kiln system can set different heating/insulation/cooling curves according to the refractory bricks specification and material to ensure consistent sintering and dense structure. Welcome to visit Kerui newly upgraded production line!

Package and Delivery of Kerui Refractory Bricks

Only refractory bricks with qualified quality will enter the packaging workshop. To ensure that the refractory bricks are not damaged during transportation, Kerui adopts packaging and delivery methods that meet export standards:

Package

Standard pallet packaging: Each batch of refractory bricks is neatly stacked on a fumigation-free pallet;
Reinforced packaging: Corner guards and waterproof PE films are added to the outside of refractory bricks to enhance moisture and shock resistance;
Identification: Each pallet is affixed with product labels, models, batches and other information for easy customer verification;
Customized packaging: Various packaging forms such as marks, cartons, wooden boxes, cabinets, and full cabinets can be customized according to customer requirements;

Delivery

Support inspection: Customers are welcome to conduct on-site inspection before shipment;
Multiple transportation: Support sea, land, rail, multimodal transport, etc.;
Flexible shipping port: Close to Qingdao Port, Tianjin Port, Ningbo Port and other ports, shipping is more convenient;
Tracking transportation: Provide packing photos and videos, shipping order numbers, etc. after shipment to grasp the logistics dynamics in real time;

Step into Kerui Refractory Brick Factory

2*168m Tunnel Kiln

20 Sets of 400T-1000T Press Machine

Fully Automatic CNC Control

Exclusive patent for refractory materials

3000m2 Refractory Storage Area

Fully Automatic CNC Control

EPC Solution for Different Industries

As a leading refractory brick manufacturer in China, Kerui offers EPC solution including refractory brick Engineering , Procurement and Construction. In addition to refractory bricks, you can also get complete, reliable and executable high-temperature kiln solutions. There are more than 20 engineers and designers here who can select materials and design according to your furnace conditions. In recent years, Kerui has provided satisfactory EPC services to customers in various industries. If you want to learn about relevant cases or seek a professional solution, then Kerui is confident that it can satisfy you.

Requirement and Technical Discussion

Understand the working process/temperature/capacity/requirements of kilns；
Evaluate on-site conditions and the kiln’s status.
Preliminary technical advice and refractory material selection plan;
CAD design drawings;

Solution and Quotation

Provide 3D kiln structure diagram;
Configure refractory brick shapes, monolithic refractories, insulation materials, etc. by different temperature zones.
Optimize the insulation structure and energy-saving effects;
Detailed quotation and sign a contract;

Refractory Materials Production

KERUI has 20 years of refractory factory and customs refractory products as required;
Equipped with automatic batching system, precision molds and 3*168m high-temp tunnel kilns.
Strict quality inspection with ISO/CE certification;
CAD design drawings;

Kiln Lining Construction

On-site guidance of chief engineer with over 30+ years experience;
200+ project experience, rich technical reserve;
Critical process control (such as masonry, expansion joints, and the furnace drying curve);
Standardized process management;

Project Acceptance

Inspect the integrity of the furnace lining structure;
Support the third-party testing;
Provide training about kiln operation and maintenance;
Chinese, English, and Russian language documents support;

After-sales and Long-term Support

Analyze the kiln lining damage with 24H rapid response;
Quick repair materials and construction plans;
Quarterly/annual technical follow-ups to solve initial problems;
Provide preventive maintenance plans.

FAQs

Short kiln lining life, frequent kiln shutdowns for maintenance?

Prioritize thermal shock-resistant refractories, ensure proper installation (especially joints), optimize firing cycles to minimize thermal stress, and inspect/replace worn sections proactively.
Excessive energy consumption, difficult to control production costs?

Upgrade to high-insulation refractories, ensure tight lining seals to prevent hot gas leaks, and optimize combustion/airflow for efficient heat transfer within the kiln.
Unstable kiln operation, affecting product quality and output?

Achieve a stable, uniform lining profile to ensure consistent heat distribution and material flow; promptly repair damaged sections causing hotspots or flow disruptions.
Improper refractory selection, resulting in severe local erosion?

Select abrasion/chemical-resistant refractories specific to high-wear zones (e.g., burning zone, transition areas); consider zoning the lining with different materials.
Poor construction quality, affecting refractory performance?

Mandate strict quality control during installation (mix ratios, curing, drying, joint integrity) using experienced contractors; proper drying/sintering is critical.
Lack of overall optimization, mismatched lifespans of various parts?

Implement a zoned lining design using optimized materials for each section’s thermal, chemical, and mechanical demands to synchronize replacement schedules.
How do kiln shutdown/cooling procedures impact lining life?

Rapid cooling causes severe thermal stress and cracking. Enforce strict, controlled cooling protocols during shutdowns to maximize refractory integrity.
Why does material impact during charging damage the lining?

Direct impact from limestone feed causes spalling and abrasion. Optimize chute design, particle size, and drop height to minimize direct lining impact.
How does thermal cycling fatigue affect the lining?

Repeated heating/cooling cycles cause expansion/contraction stress, leading to microcracking and eventual spalling. Use materials with high cyclic spalling resistance and stabilize kiln temperature operation.
Can improper flame pattern/combustion damage the lining?

Yes. Overly aggressive or misdirected flames cause localized overheating and accelerated chemical attack. Optimize burner settings and positioning for even heat distribution.
How critical is alkali/slag attack, and how to mitigate it?

Very critical. Alkali vapors infiltrate and degrade refractories. Use dense, low-porosity materials with high alkali resistance in the upper transition/preheating zones and manage fuel/raw material chemistry.