Magnesia Alumina Spinel Brick Refractories

Spinel Bricks are mainly used in non-ferrous smelting, transition zone before and after cement rotary kiln, high temperature zone of lime kiln, glass heat-accumulated type, top of reverberatory furnace, etc.

Key Features for Magnesia Spinel Bricks

  • Good thermal shock stability
  • High temperature mechanical strength
  • High softening temperature under load
  • Good slag resistance and alkali salt resistance

Product Data

Product MA-5 MA-10 MA-15
Chemical Composition
MgO ≥85 ≥80 ≥80
Al₂O₃ 5-7 8-10 15-17
Fe₂O₃ - - -
Cr₂O₃ - - -
Mechanical Properties
Apparent Porosity % ≤18 ≤18 ≤17
Bulk Density (Kg/m³) ≥2900 ≥2900 ≥2900
Refractoriness Under Load 0.2 Mpa°C ≥1620 ≥1650 ≥1650
Cold Crushing Strength Mpa ≥40 ≥40 ≥40
Thermal Shock Resistance (1100°C Water Cooling, Times) ≥6 ≥8 ≥10

Please see our digital catalogue for general size of firebricks

Fired Magnesia Brick Magnesia Chrome Bricks Directed Bonded Magnesia-Chrome Brick Semi-Rebonded Magnesia-Chrome Brick
Magnesia Carbon Bricks Magnesia Calcium Brick Magnesia-Alumina Spinel Brick Magnesia-Ferrum Spinel Brick
Nitride Carbon Silicon Carbide Bricks Silica Bricks Silica Mullite Bricks Fused Cast AZS

Please also see our Functional Refractories here

Monolithic Refractories Material Magnesia Product for Electric Arc Furnace in Steel Melting Plant Firebrick Refractories (Alumina Base Products) Insulation Bricks & Lightweight Insulation Bricks
Refractory Firebrick with Magnesia Based & Others Anchoring System & Steel Fibre for Refractory Crucible & Special Shape Refractory Pre-cast Refractory Product
Functional Refractories Wear Resistant Ceramic Products Micasheet for Induction Furnace

For further information, you can contact our Sales Engineer, or you can contact us directly here.