Products Description

Basic bricks here including magnesia fire bricks/magnesite bricks, magnesia carbon bricks, magnesia chrome bricks, mag spinel bricks and magnesia dolomite bricks/magnesia calcium bricks.

Basic bricks are widely used in Iron and steel industry, non-ferrous industry, working linings of cement rotary kilns, glass furnaces, lime furnace etc.

Product Parameters

Type	Magnesite-Alumina Spinel Brick			Magnesite-Ferrum Spinel Brick
Type	MA-5	MA-10	MA-15	MF-80	MF-75
MgO	≥85	≥80	≥80	≥84	≥80
Al2O3	5-7	8-10	15-17	≤2.5	≤2.5
Fe2O3	–	–	–	6.3	4.4
Cr2O3	–	–	–	≥3.6	≥3.5
Apparent porosity%	≤18	≤18	≤17	≥17	≥17
Bulk Density(Kg/m³)	≥2900	≥2900	≥2900	≥2980	≥3050
Refractoriness Under Load 0.2Mpa ℃	≥1620	≥1650	≥1650	1650	1570
Cold Crushing Strength Mpa	≥40	≥40	≥40	≥45	≥45
thermal Shock Resistance (1100℃ water cooling, times)	≥6	≥8	≥10	≥4	≥4

Product Advantages

Key Features for Mag Spinel Bricks

Good thermal shock stability,High temperature mechanical strength;High softening temperature under load,Good slag resistance and alkali salt resistance,High hot strength and super resistance to basic foreign substance, steel mill slag, Alkaline Oxide. Good for thermal spalling abrasion and liquid metal penetration resistanceHigh melting point, high thermal conductivity and heat storage capacity. Used in heat storage and preheater plants

Good volume stability and low porosity,Thermal shock resistance and hydrated resistance of basic bricks are weak. So basic bricks are generally used to stable temperature zone and when packed, water-proof package are necessary.Besides, we advise the bricks are used as soon as possible, storing time could be 6-12 months at most.

Product Production Process

Producing process

Raw material Grinding---batching-- Shaped with hydraulic press-- fired in 1700C tunnel kiln--inspection and packaging in warehouse

Products Applications

Due to the excellent performance characteristics of mag spinel bricks, they are widely used in various industrial fields with high temperature, high corrosion and wear, such as:

1. Iron and steel metallurgy industry: In the field of iron and steel metallurgy, magnesia spinel bricks are mainly used for the lining of high-temperature components such as furnace walls, regenerators, hot blast furnaces, blast furnaces and gas incinerator roofs.

2. Cement industry: In the cement industry, mag spinel bricks are used in the lining of cement rotary kilns and slow-speed rotary kilns.

3. Chemical industry: In the chemical industry, magnesia spinel bricks are widely used in catalysts, as well as as partitions and heat insulation materials in catalyst reaction units, refineries and kilns.

4. High-temperature treatment technology: In the field of high-temperature technology, magnesium spinel bricks are also widely used in high-temperature crucibles, regenerators, oxidation reactors, and provide high-temperature protection in chip production, artificial crystal production and other fields.