Magnesia brick

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Huachen Refractory

Tel: 0086-371-86503968

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Email:hc01@hcrefractory.com

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Add: 1899th, Zhongzhou Road,

Guangcheng District,

Zhengzhou City, Henan

Province.China. 450000

Magnesia brick

Magnesia brick as the major basic refractory brick, it include common magnesia brick, rebonded magnesia brick, fused rebonded magnesia brick, it is widely used for glass furnace generator as the checker brick, cement kiln, rotary lime kiln, reheating furnace, conventor

Model Number:Magnesia brick ,MZ-91, MZ-92, MZ-96, MZ-98

Certification:ISO 9001-14001

Minimum Order Quantity:10MT

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Magnesia brick introduction

Magnesia brick as the fundamental basic refractory brick, the major content of magnesium oxide is more than 90%, periclase as the main crystal phase of basical refractory brick.According to the difference grade of the raw materials, the magnesia brick have difference type,include common magnesia brick, direct rebonded magnesia, fused rebonded magnesia.

Magnesia brick charactors and appilication

Magnesia brick with high temperature refractorness, high begining temperature of softing under loading,good alkali resistance of slag.Used for glass furnace regenerator as checker brick, cement kiln,rotary lime kiln, steel & iron furnace，conventor, reheating furnace ...

Common magnesite brick chemical & physical

Item		MZ-91	MZ-92	MZ-93	MZ-94
Chemical composition %	MgO ≥	91	92	93	94.5
	SiO2 ≤	4.0	3.5	2.5	2.0
	Fe2O3 ≤	1.3	-	-	1.2
	CaO ≤	2.5	2.5	2.0	1.8
Apparent Porosity％ ≤		18	18	18	18
Bulk Density g/cm3 ≥		2.86	2.90	2.95	2.92
Cold Crushing Strength Mpa ≥		60	60	50	60
0.2Mpa Refractoriness Under Load T0.6 ℃		≥1570	≥1560	≥1620	≥1650
Permanent Linear Change On Reheating（%）1500℃X2h		0～+0.4	0～+0.4	0～+0.4	0～+0.4
Thermal Shock Resistances 100℃ water cycles		≥18	≥18	≥18	≥18

Fused rebonded magnesite brick chemical & physical

Item		Fused rebonded Magnesia Brick
Item		FMZ-95	FMZ-96	FMZ-97	FMZ-98
Chemical composition	MgO ％	≥94.5	≥95.5	≥96.5	≥97.5
	SiO2 ％	≤1.5	≤1.2	≤1.0	≤0.5
	CaO ％	≤1.5	≤1.2	≤1.2	≤0.6
Apparent Porosity ％		≤18	≤18	≤17	≤15
Cold Crushing Strength Mpa		≥55	≥60	≥60	≥60
0.2Mpa Refractoriness Under Load T0.6		≥1650	≥1680	≥1700	≥1700
Bulk Density g/cm3		≥2.95	≥3.0	≥3.05	≥3.05
Thermal Stability 950℃ Wind cycles		≥15	≥20	≥20	≥20

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