Alumina-silicon Refractory Bricks

High Alumina Silicon Carbide Brick

High alumina silicon carbide brick: High thermal conductivity, high compressive strength, wear resistant, erosion resistant, stable in thermal shock. Used in steel blast furnaces, troughs, non ferrous metal smelting furnaces, chemical high temperature reaction furnaces.

Also Called:Silica Mullite Brick
Al₂O₃:60-65%
Bulk Density:≥2.55g/cm³
Cold Crushing Strength:≥85MPa
Load-softening Temperature at 0.2MPa,T0.6:≥1550℃
High Alumina Silicon Carbide Brick

Description of High Alumina Silicon Carbide Brick

High Alumina Silicon Carbide Brick is a high-performance refractory product manufactured from bauxite and silicon carbide (SiC) through specialized processing. The bauxite provides the fundamental refractory properties and mechanical strength, while the silicon carbide imparts exceptional wear resistance, erosion resistance, and thermal conductivity, resulting in a superior, multi-functional refractory material.

Key Features & Performance

  1. Exceptional Wear Resistance:‌ The silicon carbide content significantly enhances abrasion resistance, far exceeding standard high-alumina bricks, effectively withstanding material friction and wear.
  2. High Erosion Resistance:‌ Exhibits excellent resistance to corrosive media such as slags, molten metals, and high-temperature gases.
  3. Superior Thermal Shock Stability:‌ Withstands severe thermal cycling and rapid temperature changes without cracking or spalling caused by thermal stress.
  4. Balanced Thermal Properties:‌ Features relatively high thermal conductivity for efficient heat transfer and moderate thermal expansion coefficients to ensure structural stability at elevated temperatures.
  5. High Mechanical Strength:‌ Offers outstanding compressive strength, combined with good impact and scouring resistance.

Technical Data of High Alumina Silicon Carbide Brick

Item Indictors
GM1650 GM1600 GM1550
ω(Al2O3)/% 65 63 60
Bulk density/(g/cm³) 2.65 2.60 2.55
Porosity/% 17 17 19
Pressure strength/MPa 85 90 90
Load softening temperature T0.6/℃ 1650 1600 1550
Thermal shock stability(1100℃ water cooling)/time 10 10 12
Normal temperature abrasion resistance/cm³ 5 5 5

Applications of High Alumina Silicon Carbide Brick

  1. ron & Steel Industry:
    • Blast furnace applications including the belly, mantle, and lower shaft zones to resist erosion from molten iron and slag.
    • Troughs (runners) and torpedo ladles, enduring the severe wear of high-temperature molten iron and slag.
  2. Non-Ferrous Metallurgy:
    • Furnace linings and launders in copper and zinc smelting furnaces, resisting corrosion from molten metals and slags.
  3. Chemical Industry:
    • Linings for high-temperature reaction furnaces and gasifiers, resistant to corrosive media and material scouring.

Case of High Alumina Silicon Carbide Brick

ABOUT XZK GROUP
Core Strengths
Technological Leadership
R&D Team
Group Structure
Certifications & Honors
Product Range:
High/mid-grade sintered zirconia, corundum, AZS bricks,lightweight insulation bricks, and unshaped refractories with annual output value exceeding 500 million RMB.
Production Capacity:
4 automated batching systems
4 high/ultra-high temperature tunnel kilns + 5 shuttle kilns
30 CNC presses (400-1500T capacity)
Digitalized workshops producing 150,000 tons/year
93 patents, including the industry-first Triple-ResistantBrick (Patent ZL201310431067.6) for glass furnaces,excelling in erosion/thermal shock resistance.
Co-drafted industry standards forandalustie/chrome-corundum/zircon bricks withChina Building Materials Academy.
Strategic partners: Baowu Group, CNBM, CSG Holding. Xinyi Glass, Kibing Group.
Led by Prof Shi Gan (renowned refractory expert), our 40+ R&D professionals drive innovation in green material technology
Prof. Shi Gan
Chief Scientist & R&D Director, XZK Group
China's highest technical for industrial R&D leadership.
Key participant in drafting 5+ national industry standards.
Principal inventor of the Triple-Resistant Brick, resolving critical glass furnace longevity challenges.
Zhengzhou Zhongke Refractories Co.
Lightweight insulation materials (alumina bubble bricks, mullite bricks)
Zhengzhou Zhongke New Materials Co.
High-temperature specialties (chrome-zirconia corundum bricks, triple-resistant bricks)
Zhengzhou Hengruida Materials Co.
Premium zirconia-series refractories
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ISO 9001/14001/45001/50001 certified. Recognized as:National High-Tech Enterprise Specialized "Little Giant" SMEGreen Factory (A-rated environmental performance)
Beginning with professional consultation to accurately identify and address specific requirements
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We offer one-on-one dedicated sales and technical team services to perfectly solve any refractory material problems you encounter
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The company has over 30 technical R&D personnel and can provide professional solutions based on the on-site conditions of customers
Quality Management System
We have a strict quality management system to ensure the stability of the quality of each batch of products.
Responsible After-sales Service
Our dedicated technical team will visit customers regularly and provide free lifetime after-sales service
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Phone/whatsApp/Wechat: 0086 19059612888
Add: Micun Industrial Area, Xinmi City, Henan Province, China
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