Magnesia chrome brick

Product

Refractory brick Magnesia spinel brick Magnesia hercynite brick Silica mullite brick Magnesia chrome brick Anti spalling high alumina brick Phosphate bonded high alumina brick High strength alkali resistant brick Insulating refractory brick Calcium silicate insulating board
Monolithic Refractories High strength mullite castable Steel fiber reinforced castable Corundum mullite castable High alumina low cement castable High alumina castable Corundum abrasion resistant castable Mullite waer resistance castable High alumina self flowing castable Alkali resistance refractory castable
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Home > Refractory brick> Magnesia chrome brick

Magnesia chrome brick

Magnesia chrome belongs to alkali brick, used high purity composite spinel as raw material. Periclase and composite spinel (XO.Y2O3). XO means MgO and FeO, while Y2O3 points to Cr2O3, Al2O3, Fe2O3.

Other name: magnesia-chrome

Model Number: SMC-8, SMC-12, MC-8, MC-12, COMC-8, COMC-12, MC-12A, MC-12B

Certification: ISO9001-14001

Minimum Order Quantity: Magnesia chrome brick

Magnesia chrome brick

Introduction
Magnesia chrome belongs to alkali brick, used high purity composite spinel as raw material. Periclase and composite spinel (XO.Y2O3). XO means MgO and FeO, while Y2O3 points to Cr2O3, Al2O3, Fe2O3. Based on the different making method of magnesia chrome brick, there have several type of magnesia chrome brick: semi-direct bonded magnesia chrome brick, common magnesia chrome brick, fused cast magnesia chrome brick, pre-reaction magnesia chrome brick, direct bonded magnesia chrome, unfired, etc.

Characteristic
1.High corrosion resistance
2.Good spalling resistance
3.High mechanical strength

Physical & Chemical Index

Item	SMC-8	SMC-12	MC-8	MC-12	COMC-8	COMC-12	MC-12A	MC-12B
Type of magnesia chrome brick	Semi-direct bonded		Magnesia chrome brick		Pre-reaction		Unfired
MgO (%)	70	60	65	65	75	65	60	55
Cr₂O₃(%)	8	12	8	12	8	12	12	12
SiO2 (%)	3.5	3.5	-	-	2.0	2.5	-	-
Apparent Porosity (% )	20	20	21	21	18	18	16	16
Bulk Density (g/cm³)	2.95	3.0	2.9	2.95	3.0	3.05	3.05	3.0
Cold Crushing Strength Mpa	45	40	35	30	40	40	60	55
Refractoriness under load of 0.2 Mpa (℃)	1600	1650	1550	1580	1650	1650	1550	1600
Thermal Shock Resistance(1100℃,water quenching cycle)	5	5	4	-	-	-	-	-
(1000℃)W/mk Thermal Conductivity	2.7	-	2.7	-	-	-	-	-
(1400℃)% Thermal Expansion Rate	-	1.5	-	-	-	-	-	-

Application
Magnesia chrome brick mainly be used in burning zone of cement rotary kiln. Co-sintered magnesia chrome brick and unburned magnesia brick also can be used in burning zone of dry-process cement rotary kiln.

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