Magnesia bricks are basic refractories for steel, cement and metallurgy, mainly available in standard and high-purity grades. They differ sharply in raw materials, properties and application, helping users balance furnace stability and costs.
1. Raw Material & Process：
Standard magnesia bricks: 85%–90% MgO, high impurities and low-melting components; conventional sintering for low cost and good value.
High-purity magnesia bricks: ≥95% MgO, ultra-low impurities; high-pressure pressing and ultra-high-temp firing for dense, stable structure.
2. Performance：
Standard: Medium high-temp performance, mediocre load softening, poor slag/abrasion/creep resistance for mild working conditions only.
High-purity: Excellent heat, corrosion, thermal shock and creep resistance, hardly deformed at high heat with long service life.
3. Application Tips：
Standard: Medium-low temp & light load; non-critical linings of cement preheaters, small lime kilns and common metallurgical furnaces.
High-purity: Severe high-temp, heavy slag & erosion; converter, ladle slag line and refining furnace key linings to prolong furnace life and reduce maintenance.
Our two types feature steady indexes and reliable quality for all industrial furnace lining projects.
