HIGH ALUMINA BRICKS
DRY PRESSED BRICKS	JMD -55	JMD -60	JMD-70 R	JMD -80	JMD-70 P	JMD-70 LF	JMD-70 SPL
Chemical Properties
Al2O3 - % min.	55	60	70	80	70	70	70
Fe2O3 - % max	3.50	3.50	4.00	2.50	3.50	2.50	1.50
Physical Properties
A.P- % max	24.0	24.0	23.0	21.0	23.0	23.0	22.0
B.D- (gm/ccs)-min	2.45	2.50	2.65	2.75	2.65	2.60	2.60
C.C.S. (Kg/Cm2) min	400	450	550	600	500	500	600
Thermal Properties
P.C.E (O.C) min	33	35	36	37	>36	>36	37.0
R.U.L (Ta oC at 2kg/cm2) min	1410	1450	1450	1510	1460	1480	1520
P.L.C % max/2 hrs.	.+/- 1.50 at 1400oC/2hrs	.+/- 2.00 at 1450oC/2hrs	.+/- 2.50 at 1500oC/2hrs	.+/- 2.00 at 1550 oC/2hrs	.+/- 2.00 at 1500 oC/2hrs	.+/- 2.00 at 1500 oC/2hrs	.+/- 0.50 at 1500 oC/2hrs
Application Area	Cement kiln,Preheating Zone, Reheating Furnace Wall	Calcination Zone of Cement Rotary Kiln,Copper Melting Furnace	Reheating Furnace Wall Burning Zone of Cement Rotary Kiln,Laddle Backup	EAF Roof, Laddle Lining & Other High Heat Duty Special Application	Burring Zone of Cement Rotary Kiln	Burning Zone of Cement Rotray Kiln & Laddle Lining	Lime Kiln & Burning Zone of Cement Rotray Kiln