High Temperature Alumina Ceramic Lining Bricks 99% Al2O3 Alumina Bubble Insulation Fire Brick
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Product Highlights
- High Mechanical Strength: Cold crushing strength exceeds 9 MPa for durability.
- Customizable OEM Service: OEM and ODM services available with customization from samples and designs.
- ISO9001 Certified Quality: Manufactured under strict ISO9001 quality control standards.
- Wide Application Range: Suitable for blast furnaces, cement kilns, and chemical industries.
- Long Service Life: Designed for long-term stability and high compressive strength.
- Competitive Pricing: Cost-effective solutions with high-quality refractory materials.
Product Attributes
- Customization
- Available
- Application
- Blast Furnace, Cement Kiln, Ceramic Kiln, Chemical Kiln, Glass Kiln, Steel-Making Furnace, Metallurgy
- Material
- High Alumina
- Model NO.
- Alumina Bubble Insulating Brick
- Refractoriness (℃)
- 1770< Refractoriness< 2000
- Product Name
- High Temperature Bubble Alumina Brick
- Bulk Density g/cm3
- 1.4-1.7g/cm3
- OEM
- Yes
- Apparent Porosity%
- 58-62
- Max Service Temperature °c
- 1800°c
- Keyword
- Alumina Ceramic Lining Brick
- Cold Crushing Strength MPa
- More Than 9
- Advantage
- Long Life
- Feature
- Long Time Materials
- Type
- Refractory Material
- Shape
- Brick
- Certification
- ISO9001,CE
- Transport Package
- Wooden Box
- Specification
- Customizable
- Trademark
- RSNC
- Origin
- China
- HS Code
- 690220000
- Production Capacity
- 5000t/Year
- Package Size
- 100.00cm * 100.00cm * 100.00cm
- 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

Alumina Hollow Ball Brick Description:
Alumina Bubble Brick is a new type high temperature heating insulation materials and made of industrial alumina in the electrical furnace through smelting and blowing. Alumina Bubble Bricks' crystal form is a-Al2O3 microcrystal and main body is alumina bubble that can be made to be all kinds of products with various shapes for serving the highest temperature of 1800ºC with high mechanical strength and low bulk density.
Alumina Bubble Brick Features:
1. High purity;
2. High mechanical strength;
3. Low thermal conductivity;
4. Good stability
5. Mainly apply to the insulation layer of coal-water slurry gasifier
6. Excellent thermal insulation
7. Long service life
8. High compressive strength
9. Competitive price
Alumina Bubble Brick Technical Data
| Item | Alumina Bubble Brick | |||
| Types | Unit | 85# | 90# | 99# |
| Maximum Service Temperature | ºC | 1680 | 1700 | 1800 |
| Al2O3 | % | ≥85 | ≥90 | ≥99 |
| SiO2 | % | ≤15 | ≤8 | ≤0.2 |
| Fe2O3 | % | ≤0.2 | ≤0.2 | ≤0.2 |
| Bulk Density | g/cm3 | 1.4-1.7 | 1.4-1.7 | 1.4-1.7 |
| Cold Crushing Strength | MPa | ≥12 | ≥10 | ≥9 |
| Refractoriness Under Load (0.1MPa, 0.6%) | ºC | ≥1650 | ≥1760 | ≥1760 |
| Reheating Linear Change (1600ºC*3h) | % | ±0.3 | ±0.3 | ±0.3 |
| Thermal Expansion Coefficient (Room temperature -1300ºC) |
×10-6ºC-1 | ~7.8 | ~8.0 | ~8.6 |
| Thermal Conductivity (Average temperature 800ºC ) |
W/(m·K) | ≤0.8 | ≤1.3 | ≤1.5 |

Alumina Hollow Ball Brick Application:
Alumina Bubble Brick is a kind of very important refractory material for resisting high temperature and special demands of positions for furnace and kiln, which is mostly used as insulating brick for insulation layer of furnace and kiln, and also can be used for service linings in manufacturing high-purity quartz for the electronics industry such as ceramic tile linings in gas turbines and backup linings in reactors.
Wooden pallets with plastic film or according to your request.
1. Strong packing protects the goods from any possible damage during transit.
2. Solid packing and overall stuffing prevent the cases from vibration and jarring.
3. Necessary precaution is taken to protect goods from pilferage or rain.

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.


RS Refractories Co., Ltd. is located in Henan, China. Our company has professional scientific and technical personnel and production team, and we have our own fully automated factories. For more than 30 years, 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.
RS Refractories Co., Ltd. is a first-class supplier of refractory materials, we can provide you with the most advantageous quotations and products. Looking forward to be your partner

There are 240 staffs in Rongsheng Company, of which 12 is senior professional technician. Annual production capacity is up to 60000 tons. There are light and heavy weight materials production lines and all kinds of complete production, testing and check equipment, of which there are 10 series shaped press machine that from 400 tons to 1000 tons and two hyperthermia tunnel kilns whose length are 148m and 118m.
Rongsheng Refractory has established complete quality system and conducted quality control through the whole staff and process that from raw materials, production, check and various parts strictly according to ISO9001 standard and with the professional checker at each level to take good product and service as the top goal.
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. Now we have established cooperation relationship with many science and research unit and our products have been sold to Japan, Indonesia,Kazakhstan and Vietnam etc.
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 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 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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