Magnesia Series Brick

Magnesia Brick

Features of Magnesia Brick:

Sintered magnesia brick is the main product of alkaline refractory materials.
This product has high refractoriness and good corrosion resistance to iron oxides, alkaline slag and high calcium flux.

Magnesia Brick

Physical Property:	LX–SMZ–89	LX–SMZ–91	LX–SMZ–93	LX–SMZ–95
MgO (%) ≥	89	91	93	95
SiO2 (%) ≤	/	/	3.5	2.0
CaO (%) ≤	3.0	3.0	2.0	2.0
Apparent Porosity (%) ≤	20	18	18	18
Cold Crushing Strength (MPa) ≥	50	60	60	60
Refractoriness Under Load (°C) ≥	1550	1560	1620	1650
Permanent Linear Change on heating ( 1650℃×2h) (%)	-0.6-0	-0.5-0	-0.4-0	-0.3-0
Thermal conductivity coefficient (1000°C)(W/m.k)≤	/	3	/	3.8

Application of Magnesia Brick:

steelmaking furnace linings, ferroalloy furnaces, mixed iron furnaces, non-ferrous metallurgical industrial furnaces;
lime kilns in the building materials industry;
regenerator grid heat exchangers in the glass industry;
tunnel kilns and high-temperature calcining kilns in the refractory industry.

Magnesia Alumina Brick

Features of Magnesia Alumina Brick:

Magnesia aluminum brick with low calcium content of high quality magnesia and industrial alumina powder as the main raw materials, by high pressure molding, high temperature sintering, good thermal stability, to iron oxides, basic slag and other solvents have a good corrosion resistance.

Magnesia Alumina Brick

Apparent Porosity(%)	≤	18	19
Bulk Density(g/cm3)	≥	2.95	2.85
Cold Crushing Strength(MPa)	≥	45	40
Refractoriness Under Load(T0.6 ℃)	≥	1700	1650
Thermal Shock Resistance (950℃,Air Cooling)(Cycles)	≥	120	100
Thermal Expansion (1000℃) (%)	*	1.2	1.2
Thermal Conductivity (1000℃)(W/m.K)	≤	4	3.8
MgO	≥	82	78
Al2O3	≥	10	10
SiO2	≤	1	3
Note:All data are average values obtained at samples for laboratory purposes.

Application of Magnesia Alumina Brick:

masonry materials on the top of high temperature melting furnaces ;
steel-making open hearth furnaces and electric copper reverberatory furnaces.

Magnesia-alumina-iron Spinel Brick

Features of Magnesia-alumina-iron Spinel Brick:

good thermal shock stability and corrosion resistance;
low thermal expansion;
low thermal conductivity;
good structural flexibility.

Magnesia-alumina-iron Spinel Brick

		MAFe-82A	MAFe-82B	MAFe-82C
Physical Property:
Bulk Density(g/cm3)	≥	2.95	2.92	2.90
Cold Crushing Strength(MPa)	≥	65	60	55
Refractoriness Under Load(T0.6 ℃)	≥	1650	1600	1550
Thermal Expansion( 1400℃) (%)	*	1.4	1.3	1.2
Apparent porosity	≤	17	18	19
Thermal Shock Resistance( 950℃,Air)(Cycles)	≥	100	100	100
Chemical Analysis(%)
MgO	≥	82	82	82
Al2O3	*	11-13	11-13	11-13
Fe2O3	*	1.5-3.0	1.5-3.0	1.5-3.0
SiO2	≤	1.5	2.0	2.5
Note:All data are average values obtained at samples for laboratory purposes.

Application of Magnesia-alumina-iron Spinel Brick:

magnesia-alumina-iron spinel brick is mainly used in the non-ferrous metallurgy industry of various furnace top temperature fluctuation area;
used for the bottom of the melting pool, furnace wall and rotary kiln lining parts.

Magnesia-alumina-chrome Spinel Brick

Features of Magnesia-alumina-chrome Spinel Brick:

Magnesia-alumina-chrome compound spinel brick uses high purity magnesia and chromium concentrate as the main raw materials, through high pressure molding, high temperature sintering, with corrosion resistance and high temperature resistance characteristics.

Magnesia-alumina-chrome Spinel Brick

		LX-MLGe-80	LX-MLGe-75
Physical Property:
Cold Crushing Strength(MPa)	≥	50	40
Refractoriness Under Load(T0.6 ℃)	≥	1680	1650
Apparent porosity	≤	18	18
Thermal Shock Resistance( 1100℃,water quenching)(Cycles)	≥	10	8
Chemical Analysis(%)
MgO	≥	80	75
Al2O3	*	9-13	9-13
Cr2O3	*	3-5	3-5
Note:All data are average values obtained at samples for laboratory purposes.

Application of Magnesia-alumina-chrome Spinel Brick:

zinc play kilns and non-ferrous smelting furnace tops in the non-ferrous industry;
high temperature kiln tops in the steel industry.

What is the Price of Magnesia Series Bricks Price?

The main factors affecting the price include: quantity and type. Magnesia series bricks are key components for building kilns. Lianxin team will provide different pricing plans according to the different needs of customers. The price of magnesia series bricks varies depending on the quantity and model selected. Customers who order large quantities of the same model can enjoy greater discounts.

Manufacturing Process of Lianxin Refractory Brick

About Lianxin:

The company has more than 20 patented technologies, more than 20 corporate honors, and international certifications such as ISO. With an annual output of 300,000 tons, the company is a leader in China’s refractory industry. As a manufacturer, we will provide you with factory direct prices. With more than 20 years of experience and a team of more than 200 professionals, we are committed to helping you find a solution that suits your needs.