Blast Furnace Application

The refractory bricks can be selected based on the applications. - Blast Furnace - Blast Furnace Hot Stoves

FOR BLAST FURNACE
Products   Specifications	high-alumina brick for blast furnace			AL2O3-C brick for blast furnace
	GL-55	GL-65	GL-75	unburnt AL2O3-C brick	AL2O3-C brick
AL2O3%  >=	55	65	76	60	60
Fe2O3%  <=	2.0	2.0	2.0	1.5	1.5
C%  <=				12	12
Refractoriness0C  >=	1770	1790		1790
0.2MPa Refractoriness under load 0C  >=	1480	1500	1520	1650	1650
Linear Change After Heating %(15000C x 2h)	0 ~ -0.2	0 ~ -0.2	0 ~ -0.2	<= 0.2	<= 0.2
Apparent Porosity % <=	19	19	19	10	18
Cold Crushing Strength MPa  >=	49.0	58.8	70	40	60

FOR BLAST FURNACE HOT STOVES
Products   Specifications	High-Alumina Brick for Hot Stove		Low-Creep Series High-Alumina Bricks
	RL-65	RL-55	LDRL-150	LDRL-150	LDRL-145	LDRL-140	LDRL-135	LDRL-130
AL2O3%  >=	65	55	75	75	65	65	65	60
Refractoriness 0C  >=	1790	1770	1790	1790	1800	1850	1850	1850
0.2MPa Refractoriness Under Load 0C  >=	1500	1470	1550	1550	1500	1500	1500	1480
Linear Change After Heating %(15000 x 2h)	+0.1 -0.4	+0.1 -0.4	<= 0.2	<= 0.2	<= 0.2	<= 0.2	<= 0.2	<= 0.2
Apparent Porosity <=	24	24	20	21	19	23	23	23
Cold Crushing Strength MPa  >=	49	44.1	60	60	60	50	45	45
Creep Rate (0.2MPa X 50h)%  <=			15500C	15000C	14500C	14000C	13500C	13000C
			0.4	0.4	0.4	0.4	0.4	0.4
			0.6	0.6	0.6	0.6	0.6	0.6
			0.8	0.8	0.8	0.8	0.8	0.8