Magnesia Iron Spinel Bricks are high-performance basic refractory bricks made from high-purity magnesia and iron spinel, offering excellent resistance to high-temperature slag corrosion and mechanical wear in steelmaking furnaces.
Chat on WhatsApp：
+8615038278221Email Us：
info@rsrefractories.com
Magnesia Iron Spinel Bricks are manufactured by mixing high-quality magnesia with iron spinel, followed by pressing and high-temperature firing. These bricks combine the high refractoriness and basic slag resistance of magnesia with the excellent thermal stability, corrosion resistance, and mechanical strength of iron spinel. MgO-FeO spinel bricks are particularly suitable for the harsh conditions of steelmaking, including electric arc furnaces (EAF), ladles, and converter linings. They resist erosion from molten steel and basic slags, maintain structural integrity under repeated thermal cycles, and provide extended service life while reducing maintenance costs.
|
Items |
Magnesia-iron spinel brick |
High toughness magnesia-iron spinel brick |
|
MgO % ≥ |
85 |
88 |
|
Fe2O3 % |
5-7.5 |
5-6 |
|
SiO2 % ≤ |
2 |
1.5 |
|
Al2O3 % |
3.0-5.0 |
4.0-7.0 |
|
Apparent Porosity % ≤ |
17 |
16 |
|
Bulk Density (g/cm3) ≥ |
3.0 |
2.9 |
|
Cold Crushing Strength (Mpa) ≥ |
45 |
55 |
|
Refractoriness Under Load (0.2MPa×0.6%) °C ≥ |
1600 |
1650 |
|
Thermal Shock Resistance (1100°C, water cooling) cycle ≥ |
6 |
8 |
Magnesia Iron Spinel Bricks are widely used in:
Electric Arc Furnace (EAF) hearths and sidewalls
Ladle linings and tapholes
Converter linings and furnace roofs
Continuous casting tundishes
Areas exposed to basic slag and molten steel
Ferroalloy and non-ferrous metal furnaces
Comprehensive Refractory Product Range
We manufacture 3 main types of refractory materials — refractory castables, high alumina cement, and refractory bricks — covering 100+ industrial furnace types worldwide.
Certified Quality and International Standards Compliance
All batches undergo strict quality control. Products comply with ISO, ASTM, and GB standards, ensuring reliable performance in high-temperature industrial applications.
Annual Production Capacity of 130,000 Tons
With a large-scale capacity of 130,000 tons per year, we guarantee stable supply and on-time delivery for long-term and large-volume projects.
Exported to 120+ Countries and 1,000+ Projects
Our products have been successfully delivered to over 120 countries, supporting more than 1,000 industrial projects, including cement, steel, incineration, glass, and petrochemical furnaces.
20+ Years of Experience in Refractory Manufacturing
With over 20 years of experience, we understand real furnace conditions and deliver materials proven in long-term industrial operations worldwide.
Professional Technical Support and Free Samples
We provide technical assistance from material selection to installation guidance, with free samples available for testing and supporting 1,000+ projects globally.
Fill out the form to request a free, detailed quote.
