TECHNICAL SPECIFICATION
FIRECLAY BRICKS
DRY PRESSED BRICKS	JMD IS-7	JMD IS-6	JMD-CFCT	JMD IS-8	JMD-45	JMD-50	JMD-40D
Chemical Properties
Al2O3 - % min.	24	30	35	40	45	50	40
Fe2O3 - % max.	2.00	2.00	2.25	2.50	3.00	3.00	2.00
Physical Properties
A.P- % max	27	25	24	24	23	23	21
B.D- (gm/cc)-min	1.90	2.00	2.10	2.10	2.20	2.30	2.20
C.C.S. (Kg/Cm2) min	250	250	300	350	380	400	350
Thermal Properties
P.C.E (O.C) min	29	30	31	32	32.5	33	32.5
R.U.L (Ta oC at 2kg/cm2) min	1290	1300	1330	1400	1400	1400	1420
P.L.C % max/2 hrs.	.+/- 1.00 at 1300 oC/2hrs	.+/- 1.00 at 1300 oC/2hrs	.+/- 1.00 at 1350 oC/2hrs	.+/- 1.00 at 1400 oC/2hrs	.+/- 1.00 at 1400 oC/2hrs	.+/- 1.00 at 1450 oC/2hrs	.+/- 1.00 at 1450 oC/2hrs
Application Area	Chimeny flue,Boiler & Sugar industry	Chimeny flue,Boiler & Sugar industry	Chimeny flue,Boiler ,Cupola& Steel industry	Cement preheater,cyclone,boiler incinerators,silicate furnace	Cement preheater,cyclone,boiler incinerators,silicate furnace	Cement kiln,preheating zone, preheating furnace wall	Cement preheater,cyclone incinerators,silicate furnace