Fired Magnesia Brick Refractories

The fired magnesia brick has high load softening temperature and strong resistance to alkaline slag erosion. The fired magnesia bricks are mainly used for the lining of basic open hearth, wall and bottom of electric furnace, permanent lining of oxygen converter, mixer, non-ferrous smelting furnace, high temperature tunnel kiln, lining of rotary kiln for calcining magnesia and cement, upper lattice bricks of glass melting furnace, bottom and end of steel rolling soaking furnace and heating furnace. 

Type MZ-97A MZ-97B MZ-95A MZ-95B MZ-93 MZ-91
MgO (%)≥ 97 96.5 95 94.5 93 91
SiO₂ (%)≤ 1.0 2.0 2.0 2.0 3.5 –
CaO (%)≤ – – 2.0 2.0 2.0 3.0
Apparent Porosity (%)≤ 16 18 16 18 18 18
Cold Crushing Strength (MPa)≥ 60 60 60 60
Refractoriness Under Load 0.2MPa ºC≥ 1700 1650 1620 1560
Reheat Test, Permanent Linear Change After Heating At (1650ºC, 2h)% 0~ −0.2 0~ −0.3 0~ −0.4 0~ −0.4

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.