Address
Building 1, Zone 1, Greenland Binhu International City, Zhengzhou, Henan, China
Work Hours
Monday to Friday: 9AM - 7PM
Weekend: 10AM - 6PM
Chrome Corundum Brick
Chrome corundum brick mainly refers to the corundum refractory product containing Cr2O3. Using α-Al2O3 as main raw material, adding appropriate amount of chromium oxide powder and chromium corundum clinker fine powder, after forming process, the bricks will be sintered at high temperature. At high temperatures, Cr2O3 and Al2O3 form a continuous solid solution, so the high temperature performance of chrome corundum products is better than pure corundum products.
In the most widely used chromium corundum products, the content of Cr2O3 is mostly in the range of 9%~15%. The main mineral composition is α-Al2O3-Cr2O3 solid solution. The secondary mineral composition is a small amount of composite spinel (or no composite spinel).
The chromium oxide content in the chrome refractory brick is from 1% to 30%. There are two types: fused cast chrome corundum fire bricks and sintered chrome corundum refractory bricks.
Product Description
Descriptoin of Chrome Corundum Refractory Brick
Chrome corundum fire bricks are high-performance refractory products primarily composed of an α-Al₂O₃-Cr₂O₃ solid solution.
By adding chromium oxide (Cr₂O₃) to corundum (Al₂O₃) and utilizing the characteristic that the two form a continuous solid solution at high temperatures, chrome corundum bricks exhibit superior high-temperature performance, slag resistance, and thermal shock resistance compared to ordinary pure corundum bricks.
Characteristics of Chrome Corundum Brick
Excellent High-Temperature Performance
High load softening temperature (typically greater than 1700℃), exhibiting excellent volume stability and resistance to softening and deformation at high temperatures.
Strong Corrosion Resistance
Demonstrates strong resistance to metallurgical slag, acidic and alkaline media, molten glass, and corrosive gases. Resistance to slag corrosion further improves with increasing Cr₂O₃ content.
Good Thermal Shock Resistance
Withstands rapid temperature changes without easily cracking or peeling.
High Strength and Abrasion Resistance
High compressive strength at room temperature (typically >150MPa), effectively resisting the erosion and wear of high-temperature materials.
Application of Chrome Corundum Fire Brick
Used as the lower lining and backing material for residual oil gasifiers and pressurized coal-water slurry gasifiers, requiring extremely high purity; it must be a high-purity product with low silicon, low iron, and low alkali.
Used in the chutes and tapping platforms of steel rolling furnaces, permeable bricks for ladles, and molten iron pretreatment devices.
Used as the lining of glass kilns and as cover bricks for glass drawing flow channels.
Used in the linings of copper smelting furnaces, zinc smelting electric furnaces, and volatilization kilns.
Used in waste incinerators and other applications requiring high corrosion resistance and erosion resistance.
Physical and Chemical Index
| 15 Chrome Coundum Brick | 10 Chrome Coundum Brick | 5 Chrome Coundum Brick | Wear Resistance Skid Rail | Zr-Cr-corundum Brick | |
| Cr2O3 % | ≥15 | ≥10 | ≥5 | ≥5 | ≥8 |
| Al2O3 % | ≥75 | ≥80 | ≥85 | ≥85 | ≥60 |
| ZrO2 % | --- | --- | --- | --- | ≥15 |
| Apparent porosity % | ≤18 | ≤18 | ≤18 | ≤16 | ≤18 |
| Bulk density (g/cm3) | ≥3.35 | ≥3.3 | ≥3.2 | ≥3.2 | ≥2.9 |
| Cold crushing strength (Mpa) | ≥120 | ≥120 | ≥120 | ≥130 | ≥90 |
| Refractoriness under load (0.2Mpa,0.6%) | ≥1700 | ≥1700 | ≥1700 | ≥1700 | ≥1700 |
Company Profile
Ruitai Lianxin
Henan Ruitai Lianxin Refractory Materials Co., ltd is a modern R&D-centered refractories manufacturing enterprise integrated with refractories sales and marketing, furnace engineering construction, recycling and sales of waste refractories as well as refractory raw material, technology and goods import and export, and technical services.
Well-equipped and technologically advanced, ISO/QHSE-certified management underpins a product line of ordinary, medium and high-grade magnesia series brick, magnesia-chrome brick, magnesia-alumina spinel brick, magnesia-alumina- chrome basic brick, lightweight brick, clay brick, high alumina brick, corundum brick, zircon series brick, silicon carbide brick and insulation materials, monolithic castable, ramming mix, plastic, etc.
We manufacture more than 70 categories of refractory bricks with more than a thousand specifications and models, which are widely used in high-temperature kiln/furnace, non-ferrous metallurgical smelter, cement lime rotary kiln, glass-melting furnace, electric power, petrochemical hazard waste incinerator etc.
Factory Show
As a 20 refractory bricks manufacturer, we have our own factory, professional machinery and equipments, strong technical team, complete delivery process, perfect after-sales service.
Test Equipment
We have innovative technology and advanced experimental equipment to ensure that every fire brick has the best quality and we are responsible for every customer.
Production Process
We have a complete production process, from raw materials to molding, and then to finished refractory materials. Each step is operated and inspected by dedicated personnel to ensure the high quality of the products.
Raw Materials
Mixing and Tempering
Forming
Drying
Sintering
Selecting
Packing
Shipping
Quality Control
After the refractory bricks are manufactured, we need to undergo professional testing and inspection to ensure that each high-quality refractory brick is delivered to the customer, so that the customer can rest assured.
Packaging & Shipping
Our refractory bricks are delivered to customers in the shortest possible time by land, sea or air.
Company Advantages
Customer Cases
As a world-renowned refractory fire bricks exporter, we have expanded our business scope to the world, providing high quality firebricks to customers worldwide. We have gained loyal customers all over the world, reached cooperation again and again, and become the first choice of global customers.
Company Certification
We are a reliable manufacturer and supplier of refractory bricks, with a number of certificates and patents to protect your kiln, and our professional team of experienced engineers and technicians are committed to providing you with excellent service.
Cooperation Partners
As a refractory bricks source manufacturer for 20 years, we use the best materials and the most cutting-edge technology to carefully make fire bricks, our firebricks have all kinds of types to meet various application needs, has won many reliable cooperation partners.
Questions & Answers
Q1: Could I get a sample before placing an order?
A1: Yes. A sample as per your requirement can be prepared for approval.
Q2:How can I get your prompt quotation?
A2:We can give you reply with quotation quickly if you kindly send the inquiry with following factors: dimension (length*width*thickness), service temperature, application and quantity.
We’d be appreciated if you can also provide the density and content.
Q3: Do you have stocks?
A3: Yes, but only for regular size.
Q4: How do you deliver my orders?
A4: Our experts can recommend you the suitable way based on the quantity and your budget. Normally ,it is by sea.
Q5: I am a big buyer, can I get a competitive price?
A5: Yes, you will get our lowest price without quality compromise along with our professional service.As we are working with mainly players in Europe, Asia, America and Afraic.
Q6: What is your quality control?
A6: 1.Chemical inspection is performed during Raw material, production and finished refractory materials.
2.Physical test is performed for finished refractory bricks.
Q7: Are you a fire bricks manufacture or trader?
A7: We are truly a refractory materials manufacturer, Ruitai Lianxin not only can provide the high quality refractory materials with the best price, but also can offer the best pre-sale service and after-service.
Q8: Do you accept size and shape customization? Are the specifications accurate?
A8: Yes! We have a professional R&D team, and advanced QC inspection equipments to ensure the accurate size and shape for you.