Address
Building 1, Zone 1, Greenland Binhu International City, Zhengzhou, Henan, China
Work Hours
Monday to Friday: 9AM - 7PM
Weekend: 10AM - 6PM
High Alumina Castable
High Alumina castables are mixed by high quality bauxite, mullite, andalusite or corundum as aggregate, silica Powder, α-alumina powder as micro powder, refractory cement as binder, also some additive to make better performance. Formulas are changed according to different applications.
Comparing to conventional dense castables, high alumina castables can be used in the area that have more higher temperature and also have higher cold crushing strength.
Product Description
Description of High Alumina Castable
High Alumina castables are mixed by high quality bauxite, mullite, andalusite or Corundum as aggregate, Silica Powder, α-alumina powder as micro powder, refractory cement as binder, also some additive to make better performance. Formulas are changed according to different applications.
Comparing to conventional dense castables, high alumina castables can be used in the area that have more higher temperature and also have higher cold crushing strength.
Characteristics of High Alumina Castable
- Anti-corrode
- Excellent abrasion resistance
- Excellent Crushing Strength
- Excellent high-temperature resistance
Application of High Alumina Castable
- Iron and steel industry: It is mainly used in the lining of steelmaking furnaces, ironmaking furnaces, bearing and transporting ladles of ladles for slag and slag, As well as the lining of the flue and blast furnace body that conducts the heat.
- Glass industry: Refractory material is the main building material of glass melting furnace, which has the decisive influence on glass quality, energy consumption and even product cost.
Physical and Chemical Index
| A-45 | A-60 | A-70 | A-75 | A-80 | A-90 | ||
| Dry Density(g/cm3)≥ | 2.3 | 2.5 | 2.6 | 2.65 | 2.7 | 3 | |
| Chemical(%） | Al2O3≥ | 45 | 60 | 70 | 75 | 80 | 90 |
| ZrO2 | - | - | - | - | - | - | |
| Modulus of Rupture(Mpa) | 110°C*24h≥ | 5 | 8 | 9 | 9 | 10 | 12 |
| 1500°C*3h≥ | 8(1350°C) | 10(1450°C*3h) | 12 | 15 | |||
| Compressive Strength(Mpa) | 110°C*24h≥ | 30 | 40 | 40 | 45 | 45 | 60 |
| 1450°C*3h≥ | 60 | 80 | 80 | 85 | 90 | 85 | |
| Linear Dimensional Change After Fired(1500°C*3h)%≤ | ±0.5 | ±0.5 | ±0.5 | ±0.5 | ±0.5 | ±0.5 | |
| 1350°C*3h | 1450°C*3h | 1450°C*3h | 1450°C*3h | 1450°C*3h | 1450°C*3h | ||
| Refractoriness(°C)≥ | 1710 | 1740 | 1790 | 1790 | 1790 | 1790 | |
| Working Temp(°C) | 1450 | 1450 | 1500 | 1550 | 1600 | 1650 | |
Company Profile
About Lianxin
Zhengzhou Lianxin High Temperature Advanced 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, 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 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 product has the best quality and we are responsible for every customer.
Production Line
As a refractory manufacturer for more than 20 years, we have a complete product production line, ensuring that every step is carried out strictly in accordance with the procedures.
Production Process
We have a complete production process, from raw materials to molding, and then to finished products. Each step is operated and inspected by dedicated personnel to ensure the high quality of the products.
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 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.
Indian customer
Kazakhstan customer
Russian customer
Vietnamese customer
Indian customer
Syrian customer
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 source manufacturer for 20 years, we use the best materials and the most cutting-edge technology to carefully make firebricks, 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 products.
2.Physical test is performed for finished products.
Q7: Are you a manufacture or trader?
A7: We are truly a manufacturer, we not only can provide the high quality products 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.
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