Capacitor Fused Silica Corundum Mullite Block Sintered Insulating Ceramic Refractory White Corundum Mullite Bricks for Sale
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Product Highlights
- High Compressive Strength: Cold crushing strength up to 100 MPa ensures durability under pressure.
- Excellent Thermal Shock Resistance: Superior resistance to rapid temperature changes compared to sintered products.
- Superior Corrosion Resistance: Resistant to acids, alkalis, and erosion in harsh industrial environments.
- OEM Customization Available: Customization options available from samples and designs for specific needs.
- Wide Industrial Application: Suitable for metallurgy, chemical industry, steel smelting, and boiler linings.
- High Purity Alumina Content: Al2O3 content is above 90% for high pure and high quality fused bricks.
Product Attributes
- Customization
- Available
- Material
- Mullite
- Refractoriness (℃)
- 1580< Refractoriness< 1770
- Model NO.
- Main material of corundum mullite brick is importe
- Product Name
- Corundum Mullite Brick
- Brand Name
- Rongsheng
- Bulk Density (g/cm3)
- 3.0
- Cold Crushing Strength (MPa)
- 100
- Size
- 230mm*114mm*65/75mm or Other Size
- Apparant Porosity
- 18
- Usage
- Furnace Liner
- Keyword
- Fire Resistant Corundum Mullite Brick
- Color
- White
- Fe2o3 %
- Less Than 0.3
- OEM
- Yes
- Feature
- Long Time Materials
- Type
- Refractory Material
- Shape
- Brick
- Transport Package
- Container
- Specification
- 25kg/bag, 50kg/bag
- Trademark
- RSNC
- Origin
- China
- HS Code
- 6902200000
- Production Capacity
- 80000 Tons Per Year
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.
Product Images of Capacitor Fused Silica Corundum Mullite Block Sintered Insulating Ceramic Refractory White Corundum Mullite Bricks for Sale
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Product Description
Corundum Mullite Brick Introduce
Main material of corundum mullite brick is imported plate corundum, high pure fused corundum, adopt advanced superfine powder adding technology, it is made by the mixing material, drying, molding and burned in high temperature shuttle kiln.Mullite brick has high refractoriness, which can reach above 1790ºC. The starting temperature of softening under load is 1600~1700ºC. The compressive strength at room temperature is 70~260MPa. Good thermal shock resistance. There are two types of sintered mullite bricks and fused mullite bricks. Sintered mullite brick is made of high alumina bauxite clinker as the main raw material, adding a small amount of clay or raw bauxite as a binder, and is made by molding and firing. Fused mullite bricks use high bauxite, industrial alumina and refractory clay as raw materials, add charcoal or coke fine particles as reducing agents, and use reduction electrofusion method to manufacture after molding. The crystallinity of fused mullite is larger than that of sintered mullite, and its thermal shock resistance is better than that of sintered products. Their high temperature performance is mainly determined by the alumina content and the homogeneity of the mullite phase and glass distribution.

Features of our refractory corundum brick
1.Low line expansion coefficients2.Long service life
3.Great corrosion and erosion resistance
4.High bulk density
5.High compressive strength
6.Good thermal shock resistance
7. Good corrosion resistances to acids and alkali
Details of Rongsheng refractory corundum brick
1. Refractory corundum brick is produced by sintered corundum or electro-fused corundum of high purity alumina content, with binding agent mixed to mud, after forming, drying and firing.
2. Refractory corundum brick has high bulk density, high compressive strength, good thermal shocking resistance,
and good corrosion resistances to acids and alkali.
3. Al2O3 content is above 90%.
4.Working temperature: 1800°C.

Rongsheng Refractory Corundum Mullite Brick Technical Data
| Item | High Pure and High Quality Fused Corundum Fire Brick |
Sintered Corundum Fire Brick | Mullite-Corundum Fire Brick |
| Al2O3 % | ≥99 | ≥90 | ≥80 |
| SiO2 % | ≤0.2 | ≤8 | ≤18 |
| Fe2O3 % | ≤0.2 | ≤0.2 | ≤0.3 |
| Bulk Density g/cm3 | ≥3.2 | ≥3 | ≥2.8 |
| Apparent porosity % | ≤19 | ≤18 | ≤18 |
| Cold compressive strength MPa | ≥100 | ≥100 | ≥100 |
Application of Corundum Mullite Brick
Refractory corundum brick is used as inner lining brick in decomposing furnaces for petroleum and chemical industry,as well as chemical fertilizer industry.1.Metalluragy industry
2.Heat treatment furnace
3.Chemical industry
4.Steel,non-ferrous smelting furnace
5.Boiler and waste incinerator
6.Coke oven
7.Blast furnace
Company Information:
The company has more than 280 employees, including 26 technicians, 18 middle and senior professional titles, and 8 junior professional titles. It has two high-temperature tunnel kilns and two shuttle kilns. The products are widely used in metallurgy, nonferrous metals, building materials, electric power, petrochemical and other industries. With stable quality and superior performance, the products have won many praises from customers.
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.
4. Every possible precaution is taken to ensure our products in prime condition when reach customers around the world.
Give us One minute, just one minute ,you can Eliminate your doubts and witness we maintain an Attitude of high seriousness and professional to solve your problems.
No.1: We are Manufacturer of refrcatory materials, so we can provide you Professional Solutions about your problems. Although our salesman cannot reply you immediately, pls leave your email or phone number, we can let our technician directly help you ASAP.
No. 2: Our Reputation built in the past years through: Russia, Iran, Vietnam and India, etc. You can always get Feedback from our customer in these countries before dealing with us.
No. 3: We have good Connection with Shipping Company, Agency, as well as the local custom and port authority. Making sure we Deliver on time.
No. 4: We have no gap in Communication, because we will help you in our Sincere Attitude.
No. 5: We can provide you the best price, and what you will get from us is our best effort in service and the hospitality that you are willing to become our Friend.
So choosing us is the right choice for you.If you are interested in our products or if you have any question, pls feel free to contact us at any time. We will reply as soon as possible.
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
- Can the product size be customized?
- Yes, standard sizes include 230mm*114mm*65/75mm, and other sizes are available upon request.
- What is the minimum order quantity?
- The minimum order quantity is 1 ton.
- What certifications does the supplier hold?
- The company holds ISO 9001:2015, ISO 45001:2018, and ISO 14001 certifications.
- What are the available payment terms?
- Payment terms include LC, T/T, D/P, PayPal, Western Union, and small-amount payments.
- How long is the lead time for production?
- Lead time is within 15 workdays during the off-season and one month during the peak season.
- Is OEM service available for this product?
- Yes, OEM and ODM services are available, including customization from samples and designs.
- What is the cold crushing strength of the brick?
- The cold crushing strength is at least 100 MPa.
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