Magnesia Brick

Details

Magnesia bricks, magnesia-alumina spinel bricks and magnesiz-zircon bricks characterized by their excellent resistance to alkaline vapor and slag, are used for regenerator of glass furnace, cement kiln, metallurgical furnaces for nonferrous metals, steel making electric furnace, flat furnace, converter and holding furnace in the parts contacted with alkaline materials.

Item	Magnesia bricks		Middle Grade Magnesia Brick		High Purity Magnesia Brick		Electric fused Magnesia Brick
Item	MZ-89	MZ-91	MZ-95	MZ-96	MZ-97	MZ-98	DMZ-98
MgO %min	89	91	94.5	95.5	96.5	97.5	97.5
CaO %max	3	3	2.5	2	1.5	1.0	1.0
Apparent porosity % max	20	18	18	18	18	18	18
Cold crushing strength Mpa min	49	58.8	60	60	60	60	40
Refractoriness under load (0.2Mpa) min	1540	1550	1620	1650	1680	1700	1700
Permanent linear change on reheating %	-0.6	-0.5	-	-	-	-	-

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