city cat magnesia chrome bricks

Magnesia chrome brick is a kind of basic refractory material with more than 90% magnesium oxide content and periclase as the main crystal phase, and magnesia chrome brick has excellent features of high refractoriness, high temperature strength, good thermal shock resistance and strong basic slag erosion resistance.
Magnesia chrome bricks are mainly used for steelmaking basic open-hearth furnace, electric furnace bottom and wall, permanent lining of oxygen converter, nonferrous metal metallurgy furnace, high temperature tunnel kiln, lining of rotary kiln, furnace bottom and wall of heating furnace, regenerative chamber of glass furnace and so on.



Specification for Magnesia-Chrome Bricks

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Grade Control Properties Supplamentary Properties Design Properties
BD
HA		 AP
GP		 CCS
SBM		 Chemical Analysis RUL
YAR		 TSR
TSD
air		 Thermal Expansion
MgO SiO2 CaO Fe2O3 Al2O3 Cr2O3 400◦ 800◦ 1000◦
g/cm3 % N/mm2 % Ta◦C cycle %
CAT M 95 2,90 18,0 70 95,0 1,5 2,0 1,0 0,5 >1650 >50 0,5 1,2 1,6
Fired magnesia brick based on dead burned magnesia
CAT M 96 2,95 17,0 70 96,0 1,0 2,0 0,8 0,2 >1700 >50 0,5 1,2 1,6
Fired magnesia brick based on fused magnesia
CAT M 97 2,97 16,0 70 97,0 0,6 1,3 0,6 0,2 >1750 >50 0,6 1,3 1,7
Fired magnesia brick based on sintered and fused magnesia
CAT M 97 E 3,07 6,0 90 97,0 0,6 1,3 0,6 0,2 >1750 >50 0,6 1,3 1,7
Fired and empregnated magnesia brick based on sintered and fused magnesia
CAT M 98 3,00 16,0 70 98,0 0,2 0,9 0,5 0,1 >1750 >50 0,6 1,3 1,7
fired magnesia brick based on high grade sinterd magnesia
CAT MC 10 2,95 18,0 50 82,0 2,0 2,0 3,0 3,0 7,5 1600 >50 0,5 1,1 1,5
Fired magnesia chrome brick based on sintered magnesia and chromite
CAT MC 12 3,00 17,0 60 80,0 1,1 2,4 8,0 2,0 6,0 1550 >80 0,4 1,1 1,5
Fired magnesia crome brick based on alpine sintered magnesia and chrome
CAT MC 18 3,00 17,0 60 77,0 1,0 2,2 8,0 2,5 9,0 1650 >80 0,4 1,1 1,5
Fired magnesia crome brick based on alpine sintered magnesia and chrome
CAT MC 30 3,05 18,0 40 74,0 1,5 1,5 5,0 5,0 15,0 1600 >50 0,3 1,0 1,3
Fired chrome magnesia brick based on fused magnesia and cromite
CAT MC 40 3,10 18,0 40 65,0 1,5 1,5 6,0 6,0 20,0 1600 >50 0,3 0,9 1,2
Fired chrome magnesia brick based on fused magnesia and cromite
CAT MC 60 3,15 19,0 35 49,0 2,0 1,5 9,0 9,0 30,0 1600 >50 0,3 0,9 1,2
Fired chrome magnesia brick based on fused magnesia and cromite
CAT MC 75 3,15 20,0 30 35,0 2,5 1,0 12,0 12,0 38,0 1600 >50 0,3 0,7 1,1
Fired chrome magnesia brick based on fused magnesia and cromite
CAT MC 90 3,20 20,0 30 30,0 2,5 1,0 12,5 12,5 42,5 1650 >50 0,3 0,7 1,0
Fired chrome magnesia brick based on fused magnesia and cromite
CAT MK 100 F 3,25 16,0 75 65,0 0,8 1,0 11,0 4,0 18,0 >1700 >50 0,4 0,9 1,2
High fired crome magnesia brick based on fused magnesia chrome clinker