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| Classification: | High-Alumina |
| Feature: | Good Mechanical Strength, Good Thermal Insulation Performance, High-Temperature Resistant, Low Thermal Conductivity, Corrosion Resistance |
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Description of High Alumina Bricks
High alumina brick is a high-grade refractory material made from high-alumina bauxite (Al2O3 content ≥48%) as the main raw material, through batching, molding, and high-temperature firing. It has high refractoriness, good thermal stability, and high mechanical strength, and is widely used in critical parts of high-temperature industrial kilns and thermal equipment. Based on the alumina content, high alumina bricks can be divided into several grades, such as 48%, 55%, 65%, 75%, and 80%.
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Material
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high alumina bauxite-Al2O3 content is 48%-85%
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Temperature
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Refractoriness is above 1770°C,Working temperature:1350°C -1650°C
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Color
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earthy yellow
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Size
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Standard sizing: 230 x 114 x 65 mm ,Special size and OEM Service also provide!
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Shape
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Straight Brick,special-shaped brick,checher brick,trapezoidal brick,Bricks with taper,arch brick,skew brick,ect.
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Main Characteristics of High-Alumina Bricks
1.High Refractoriness: Refractoriness is generally between 1750-1790ºC
2.High Load Softening Temperature: Suitable for high-temperature and heavy-load environments
3.Excellent Thermal Stability: Good thermal shock resistance, reducing spalling and cracking
4.High Mechanical Strength: High compressive strength at room temperature and high temperatures
5.Good Corrosion Resistance: Strong resistance to acidic and neutral slags
6.Good Volume Stability: Low shrinkage rate at high temperatures, stable structure
Advantages of High-Alumina Bricks
1.Adaptable to High-Temperature Conditions: Suitable for more demanding operating environments than ordinary clay bricks
2.Long Service Life: Reduces the frequency of furnace lining replacement and minimizes downtime losses
3.High Overall Cost-Effectiveness: Balanced performance and cost, wide range of applications
4.Diverse Specifications and Customizable: Supports standard and special-shaped brick processing
5.Convenient Construction: Good compatibility with various refractory mortars and castables
Standard sizing: 230 x 114 x 65 mm ,Special size and OEM Service also provide!
The size is precise, providing kinds of shapes according to customer's drawing
High Alumina Refractory Brick Specification
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Item/Grade
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Fire clay brick
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High alumina brick
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SK-30
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SK-32
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SK-34
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SK-35
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SK-36
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SK-37
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SK-38
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SK-40
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AL2O3% (≥)
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30
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35
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38
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45
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55
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65
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70
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82
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Fe2O3% (≤)
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2.5
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2.5
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2
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2
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2
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2
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2
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2
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Refractoriness(SK)
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30
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32
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34
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35
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36
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37
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38
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40
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Refractoriness under
load, 0.2MPa, °C (≥) |
1250
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1300
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1360
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1420
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1450
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1480
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1530
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1600
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Apparent porosity (%)
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22-26
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20-24
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20-22
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18-20
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20-23
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20-23
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20-22
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18-20
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Bulk density (g/cm³)
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1.9-2.0
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1.95-2.1
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2.1-2.2
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2.15-2.22
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2.25-2.4
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2.3-2.5
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2.4-2.6
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2.5-2.7
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Cold crushing
strength ,MPa (≥) |
20
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25
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30
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40
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45
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50
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60
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70
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Application Industries of High-Alumina Bricks
High-alumina bricks are widely used in the following high-temperature industrial fields:
Steel Industry
Blast furnaces, hot blast stoves, heating furnaces, soaking pits
Cement Industry
Rotary kilns, preheaters, decomposition furnaces
Non-ferrous Metals Industry
Aluminum, copper, and zinc smelting furnaces and holding furnaces
Glass Industry
Glass melting furnaces, regenerators
Ceramics and Refractory Materials Industry
Tunnel kilns, shuttle kilns
Chemical and Power Industry
Boilers, incinerators, gasifiers
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.
Every possible precaution is taken to ensure our products in prime condition when reach customers around the world.By sea or air. Normally 7 to 14 Days for delivery, according to your order quantity.
ZHENGZHOU RONGSHENG REFRACTORY CO., LIMITED has 30 years of experience in R & D and design of unshape refractory experts, holds 20 utility model patents and 7 invention patents, and has passed the ISO quality, environment and safety management system certification.
The company is committed to the R & D, production and service of refractories used in metallurgy, electric power, nonferrous metals, building materials, chemical industry and other industries. Its products cover 198 kinds of materials and 2369 varieties in three categories (acidic, neutral and alkaline), providing overall solutions for refractories for 1200 domestic and 200 foreign customers.The products are mainly all kinds of stereotyped and amorphous refractories, with full refractory physical and chemical index testing equipment and testing system, through ISO quality, environment, safety three management systems.
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.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 holds the third-level qualification certificate of metallurgical general contracting for furnace construction, the second-level anti-corrosion insulation qualification certificate, the quality management system ISO 9001 certification, 14001 certification, 45001 certification, 18001 certification and AAA-level credit enterprise certification. 25 Years of experience, more than 2,000 furnace cases around the world, and a team that can execute more than 20 furnace construction projects at the same time.
1.Are you a manufacturer or a trader?
Manufacturer, some time we help our clients to purchase related products as a trader.
2.What's the MOQ?
The MOQ varies for different products. Please contact us to understand.
3.How do you guarantee quality?
Always a pre-production sample before mass production;Always final Inspection before shipment;
4.Can you provide samples for free?
Yes, we can supply samples for free, and the freight will be undertaken by clients.
5.May I visit your factory?
Yes, we will arrange professional reception personnel to patiently explain to you.
6.Why choose you over other suppliers?
We have a large scale, strong strength, and rich experience, professional technology, and perfect customer service, and have obtained various certifications such as CE/ISO9001/ISO45001.
7.What services can you provide?
Any delivery terms are acceptable
Accept any payment currency
Accept any payment type
Language: English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, Italian, etc
we can provide you with the most advantageous quotations and products. Looking forward to be your partner!
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