High Alumina Refractory Castable with Good Slag Resistance for Steel Furnace
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Product Highlights
- High Slag Resistance: Designed for steel furnaces with excellent resistance to slag erosion and chemical attack.
- Low Cement Formula: CaO content less than 3% ensures higher density, lower porosity, and superior strength.
- Customizable Composition: Al2O3 content ranges from 50% to 90% to meet specific industrial furnace requirements.
- OEM and ODM Services: Full customization available from samples and designs with experienced engineering support.
- Strict Quality Control: Products undergo random visual and function inspections before shipment to guarantee quality.
- ISO 9001 Certified: Manufacturing process certified with ISO 9001:2015 and ISO 45001:2018 management systems.
- Global Shipping Support: Flexible packaging options including 25kg bags and fumigation pallets for international orders.
Product Attributes
- Customization
- Available
- Material
- Alumina Cement
- Refractoriness (℃)
- 1580< Refractoriness< 1770
- Model NO.
- refractory castable
- Shape
- Powder
- Product Name
- Alumina Silicon Carbide Carbon Castable
- Color
- Grey
- Cold Crushing Strength(MPa)
- 20~80MPa
- Certificate
- ISO9001
- Application
- Industrial Furnaces
- Function
- Functional Refractories
- Maximum Service Temperature
- 1400-1650
- Al2O3
- 50%-90%
- Feature
- Instant Materials
- Type
- Refractory Material
- Transport Package
- Bag
- Specification
- 25kg/bag, 50kg/bag
- Trademark
- RSNC
- Origin
- China
- HS Code
- 3816000000
- Production Capacity
- 50000 Tons/Year
- Package Size
- 200.00cm * 200.00cm * 200.00cm
- Package Gross Weight
- 1000.000kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
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Product Description
High alumina refractory castable with good slag resistance for steel furnace

Rongsheng Refractory has professional sales and after-sale service team who provide customers all-around service about product application, construction installation and operation technology training etc.
Low cement refractory castable mainly includes three types: high alumina refractory castable, mulite refractory castable, corundum refractory castable.

Product Description Of Low Cement Castable
Low cement castable is the castable whose CaO content less than 3%, usually the refractory cement dosage is from 3-8%, but high grade cement is needed to ensure the strength of the castable. Comparing to common refractory castable, low cement castable has better performance in high temperature, and require less water, it makes the castable has lower porosity and higher density.
With these characteristics, the low cement refractory castable is widely used as linings in reheating furnace and other industrial furnaces.
| Al2O3, % ≥ | 50 | 60 | 70 | 80 | 90 | |
| CaO, % ≤ | 2.5 | 2.2 | 2 | 2 | 1.8 | |
| Bulk density, g/cm3 ≥ | 2.35 | 2.45 | 2.5 | 2.6 | 2.95 | |
| Cold crushing strength, Mpa ≥ | 110x24h | 20 | 25 | 30 | 30 | 40 |
| 1000x3h | 45 | 50 | 55 | 55 | 65 | |
| 1400x3h | 60 | 65 | 70 | 70 | 80 | |
| Linear on reheating, % | 1400x3h | ±0.5 | ±0.4 | ±0.4 | ±0.3 | ±0.4 |
| Max. service temperature, °C | 1400 | 1450 | 1500 | 1550 | 1650 | |
| Water consumption, % | 6 ~ 7.5 | 6 ~ 7.5 | 6 ~ 7.5 | 6 ~ 6.5 | 6 ~ 6.5 | |
Low cement refractory castables are mainly used for furnace lining of boiler, blast furnace, hot blast stove, heating furnace, ceramic kiln and various industrial furnaces.
Packaging: 25kg/bag, two layers kraft bag with water proof, and with ton bag outside or each ton packed on a fumigation pallet according to customers' request.
Zhengzhou Rongsheng Refractory Material CO., LTD.
Established in the early nineties of twenty century, with continuous innovation and development, now it is a comprehensive enterprise in refractory materials industry, covering metallurgy, building materials, electric power, chemical industry etc.
We have own workshop , advanced production line , experienced workman and stricted check out flow .
So choosing us is the right choice for you.If you are interested in our Low cement refractory castables or if you have any question, pls feel free to contact us at any time. We will reply as soon as possible.

Now we have established cooperation relationship with many science and research unit and our products have been sold to Japan, Indonesia, Russia,Kazakhstan and Vietnam etc.
We provide service that bring 100% of our customers back.
So many customers make business with Rongsheng Refractory.We have no gap in communication.The customers all keep long-term relationships with us.
Q1. Are you Manufacturer?
A: Yes, of course, our factory is in Xinmi,zhengzhou city,Henan province.
Q2. Can we visit your company?
A: Sure,welcome at any time,seeing is believing.
Q3. Do you accept OEM?
A: Yes, we can do OEM.
Q4. What's the MOQ of trial order?
A: No limit,We can offer the best suggestions and solutions according to your condition.
Q5. What are the payment terms?
A: Usually T/T,but L/C,Western Union etc are available for us.
Q6. How long is delivery time?
A: The delivery time will be determined according to the quantity of the order.
Q7. How are your products' quality?
A: The products will be strictly inspected before shipment, so the quality could be guaranteed.
Q8. How to solve the quality problems?
A: If the products are not confirmed to customer samples or have quality problems,our company will be responsible to make compensation for it.
Q9. What is the service life of your bricks?
A: The service life of different bricks is unlike.It also depends on your using condition and method.
Q10.How about your company's certification?
A: ISO9001 and Test Report,also we could apply other necessary certification.
About the Supplier
This supplier has been audited by BV. Verify the report on the official BV website with ID "MIC-ASR2591342". Items marked "" are certified.
Company Profile
Rongsheng Refractory specialize in refractory products for nearly 30 years, covering a full range of High Alumina Bricks, Sillica Bricks, Fused AZS 33/36/41 Bricks, Mullite JM 23/26/28/30 Bricks, Magnesia Bricks, Magnesia Chrome Bricks, Magnesia Carbon Bricks, SiC Bricks, Dense and Light Weight Insulaing Castables, Graphite Electrode and other related products for more sophisticated applications.
Our products are widely used in metallurgy, nonferrous metals, building materials, electric power, petrochemical and other industries. The company has an automatic production line with an annual output of 80, 000 tons of intelligent unshaped refractory products. Its products are sold in more than 120 countries around the world and have won wide acclaim from customers.
Rongsheng Refractory pays attention to technological innovation and product research and development, and has established close cooperative relations with many universities and scientific research institutes. It has successively established technical research and development centers and product testing laboratories, and has advanced refractory physical and chemical testing equipment. The company has also passed the quality management system, environmental management system, occupational health and safety management system certification, high-tech enterprise certification, etc.
We have focused on the development and innovation of refractory materials and high-temperature furnace technology, and strive to provide customers with comprehensive, personalized and cost-effective services with high-quality products. Our products are widely used in electric power, metallurgy, petrochemical and other fields, and are exported to more than 120 countries and regions in the world such as Europe, America, Oceania, Southeast Asia, and the Middle East.
We can provide you with the most advantageous quotations and products. Looking forward to be your partner!
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- 10th/11th Floor, Building 6, China Central Electronic Commerce Port, Daxue Road, Erqi Dist, Zhengzhou, Henan, China
-
Plant Area
- 8004 square meters
-
Number of Employees
- 133
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union, Small-amount payment
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: within 15 workdays -
Nearest Port
- Qingdao Port
-
Minimum Order Quantity
- 1 ton
-
Supply Chain Partners
- 30
Our Production Capability & Technical Expertise
-
Main Products
- Refractory Brick, Refractory Castable, Graphite Electrode, Refractory Cement, Ramming Mass, High Alumina Bricks, Magnesia Bricks, Corundum Bricks, Mullite Bricks, Insulation Bricks
-
Production Lines
- 2
-
Production Machines
- Crushing Machine, Packing Machine, Storage Bin, Mixing Machine
-
QA/QC inspectors
- 5 people
-
Inspection Type for Finished Products
- Random inspection(Visual inspection & Function inspection)
-
Inspection Method for Finished Products
- Have instructions and uniformly followed
-
Customization Options
- Customization from Samples, Customization from Designs
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 3 people
-
Traceability of Raw Materials
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2011-03-23
-
Export Year
- 14 years
-
Main Markets
- South America, Europe, Southeast Asia/ Mideast, Africa, Middle Asia
-
Repeat Buyers Choice
- 30%~50%
-
Number of Foreign Trading Staff
- 32
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- No
Our Certifications, Standards & Industry Recognition
-
Management System Certification
- ISO9001:2015, ISO45001:2018, ISO14001
-
Product Certification
- CE
-
Cooperated with Fortune 500
- No
FAQ
- Are you Manufacturer?
- Yes, of course, our factory is in Xinmi,zhengzhou city,Henan province.
- Can we visit your company?
- Sure,welcome at any time,seeing is believing.
- Do you accept OEM?
- Yes, we can do OEM.
- What's the MOQ of trial order?
- No limit,We can offer the best suggestions and solutions according to your condition.
- What are the payment terms?
- Usually T/T,but L/C,Western Union etc are available for us.
- How long is delivery time?
- The delivery time will be determined according to the quantity of the order.
- How are your products' quality?
- The products will be strictly inspected before shipment, so the quality could be guaranteed.
- How to solve the quality problems?
- If the products are not confirmed to customer samples or have quality problems,our company will be responsible to make compensation for it.
- What is the service life of your bricks?
- The service life of different bricks is unlike.It also depends on your using condition and method.
- How about your company's certification?
- ISO9001 and Test Report,also we could apply other necessary certification.
Send your message to this supplier
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