Magnesia Alumina Spinel Bricks

Magnesia alumina spinel bricks exhibit relatively uniform expansion and contraction during temperature fluctuations, along with good thermal shock resistance. Their refractoriness under load and strength are superior to those of magnesia bricks. The ability of magnesia alumina spinel bricks to resist alkaline slag and iron oxide slag is also stronger than that of magnesia bricks. They are widely used in refractory materials, steel smelting, cement rotary kilns, and glass industry kilns.

Send Message WhatsApp

Physical and Chemical Indicators

Item	MLJ-90	MLJ-85	MLJ-80	MLJ-75
MgO (%)	≥ 90	≥ 85	≥ 80	≥ 75
Al₂O₃ (%)	3~8	5~12	8~17	≥ 8~12
Apparent Porosity (%)	≤ 17	≤ 17	≤ 16	≤ 19
Bulk Density (g/cm³)	≥ 2.95	≥ 2.95	≥ 2.90	≥ 2.85
Cold Crushing Strength (MPa)	≥ 45	≥ 45	≥ 55	≥ 40
Refractoriness Under Load (0.2MPa, ℃)	≥ 1700		≥ 1650
Thermal Shock Resistance (Cycles, 1100℃ water cooling)	≥ 1650	≥ 8	≥ 8	≥ 8

Related Products

Fireclay Bricks

Low-Porosity Fireclay Bricks are characterized by a dense structure, low apparent porosity, and high cold crushing strength.

High Alumina Bricks

High alumina bricks are neutral refractory materials with a certain degree of corrosion resistance to both acidic and alkaline slags.

Phosphate-Bonded High Alumina Bricks

Based on their characteristics, phosphate-bonded high alumina bricks are mainly classified into phosphate-bonded high alumina bricks, phosphate-bonded wear-resistant bricks, and special phosphate bricks.

Mullite Bricks

Mullite bricks possess excellent high-temperature performance, high strength, high refractoriness under load, superior thermal shock resistance, and good chemical stability. They exhibit good corrosion resistance against acidic and low-alkaline slags.

Corundum Mullite Bricks

Corundum mullite bricks are characterized by high-temperature resistance, erosion resistance, chemical corrosion resistance, high cold crushing strength, high refractoriness under load, and good thermal shock stability.