Phosphate Fire Brick
Phosphate fire bricks are a special type of refractory material that uses chemical bonding instead of high-temperature sintering. They are characterized by high strength, high wear resistance, and good thermal shock resistance, playing a crucial role in industrial kilns where they must withstand severe wear and temperature fluctuations.
Main grades include the P series (phosphate-bonded) and PA series (aluminum phosphate-bonded), or classified according to alumina content such as P-75, PA-80, etc.
Characteristics of Phosphate Brick
High strength and high wear resistance
Its compressive strength at room temperature can reach over 70-80 MPa, and its wear resistance is several times that of ordinary clay bricks, making it ideal for areas with severe wear.
Excellent thermal shock resistance
Phosphate bricks can withstand frequent and drastic temperature changes; ordinary products can withstand more than 50 water-cooling cycles, and its performance is further improved with the addition of stainless steel fibers.
Good chemical corrosion resistance
Its resistance to alkali corrosion is superior to traditional high-alumina bricks and clay bricks.
Cost advantage
The production process is relatively simple, and the production cost is 60-70% lower than that of zirconia-corundum bricks, resulting in outstanding overall cost-effectiveness.
Application of Phosphate Refractory Brick
Phosphate fire bricks are primarily used in the low- and medium-temperature zones of glass kiln regenerators, as well as in areas requiring high wear resistance and thermal shock resistance. It is also found in insulation materials such as lightweight phosphate concrete.
This is one of the main application areas for phosphate bricks, commonly used in the transition and cooling zones of rotary kilns, significantly extending the kiln lining’s lifespan.
Phosphate refractory bricks can be used in blast furnace belly, electric furnace roof, and in harsh environments requiring resistance to high temperatures, abrasion, and chemical corrosion, such as in waste incinerators.
Phosphate Brick Technical Parameters
As a professional refractory bricks supplier, we provide you with detailed technical specifications for phosphate refractory bricks to assist you in making the right choice. The following represent our standard specifications. Additionally, we offer customized refractory brick services tailored to the specific requirements of your kiln.
Phosphate Brick
| High RUL phosphate brick | Phosphate bonded wear-resistant bricks | |||
| TP-1 | PA-75 | PA-80 | ||
| Al2O₃% | ≥ | 75 | 75 | 80 |
| Fe203% | ≤ | 2.0 | 2.1 | 2.0 |
| Ca0 % | ≤ | - | 0.6 | 0.6 |
| Hefractoriness ℃ | ≥ | 1790 | 1770 | 1790 |
| Apparent porosity % | ≤ | 18 | - | - |
| Bulk density g/cm³ | ≥ | 2.90 | 2.70 | 2.80 |
| Cold crushing strength MPa | ≥ | 80 | 64 | 80 |
| Refractoriness Under Load 0.2MPa ℃ | ≥ | 1520 | 1300 | 1350 |
Phosphate Refractory Brick Price
Our wholesale pricing for refractory bricks is flexible and subject to adjustment based on various factors, including order quantity, product specifications (dimensions and shape), refractory grade (standard, medium, or high-grade), and delivery terms. For custom phosphate bricks—specifically those with non-standard specifications or specialized refractory grades—pricing will be negotiated based on raw material costs, production complexity, and order volume.
As a reliable refractory bricks supplier, we are committed to providing you with the most competitive quotes; we will furnish a detailed quotation tailored to your specific order requirements, thereby assisting you in effectively managing your procurement costs.
Why Choose Ruitai Lianxin Phosphate Bricks?
Phosphate bricks and other high-quality refractory bricks constitute our core product line. As a specialized refractory bricks manufacturer & supplier, we are dedicated to providing global clients with optimal kiln solutions, backed by the following core advantages:
Factory-Direct Supply
As a direct-operated refractory brick manufacturer, we wholesale phosphate bricks and various other refractory bricks at direct-from-factory prices, drastically reducing your overall procurement costs.
Rigorous Quality Control
Through our comprehensive quality inspection system, we oversee everything from raw material selection to final dispatch, ensuring your phosphate fire bricks meet international standards.
Customized Furnace Solutions
The geometric structures and heat loss zones of different kilns vary widely. In addition to supplying standard bricks, we can directly manufacture a wide range of custom-shaped refractory bricks based on your engineering CAD drawings.
Extensive Export Experience
With twenty years’ experience in the export of refractory products, we expertly manage customs clearance procedures, providing one-stop logistics services within 15-30 working days.
Ruitai Lianxin Refractory Brick Manufacturing Process
Ruitai Lianxin refractory brick manufacturer consistently adheres to rigorous, standardized production processes to ensure that every refractory brick possesses consistent quality and reliable performance.
Ruitai Lianxin Refractory Brick Customer Case
As one of China’s professional refractory materials manufacturers, we specialize in the export of high-standard refractory bricks and provide industrial clients worldwide with factory-direct supplies. Our products and customized solutions have garnered widespread acclaim globally, and we maintain stable, long-term partnerships in numerous countries, including Uzbekistan, Syria, and Pakistan. Through deep collaboration with refractory brick clients worldwide, Ruitai Lianxin will continue to pursue mutually beneficial outcomes.
Contact Us
If you are seeking a trustworthy manufacturer and supplier of refractory bricks—or require phosphate fire bricks and wholesale refractory services—we are your ideal choice. As a direct-from-factory refractories supplier, Ruitai Lianxin offers not only highly competitive pricing but also professional customization services and comprehensive after-sales support.
Contact us today to receive a free quote and a customized refractory solution for your kiln; let us become your long-term partner in the field of refractory materials!