High-Performance Mullite Insulation Brick

Mullite Insulation Brick is a kind of quality refractory insulation material for resisting high temperatures with features of lightweight, low thermal conductivity, thermal insulation, and high compression strength in high-temperature furnaces or kilns. Mullite Insulation Bricks are mainly used for the top of hot blast stoves, stack and bottom of blast furnaces, regenerative chamber of glass melting furnaces, the lining of ceramic high-temperature furnaces, and so on.

Technical parameter of high-performance mullite insulation brick

M Series Insulating Firebrick Performance Parameter
Items		FJM23L	FJM-23	FJM-25	FJM-26	FJM-28	FJM-30	FJM-32
Classification Temperature (℃)		1260	1260	1350	1430	1540	1600	1650
Bulk Density (kg/m3)		500	550	800	780	880	1000	1200
Cold Crushing Strength (MPa)		1.2	1.3	1.8	2.5	2.8	3.0	3.8
Modulus of Rupture (MPa)		0.9	1.0	1.2	1.4	1.7	1.8	2.0
Reheating Linear Change (%) @℃×12h		-0.3 (1230)	-0.2 (1230)	-0.5 (1350)	-0.6 (1400)	-0.8 (1500)	-0.8 (1600)	-0.7 (1650)
Thermal Conductivity (W/m.K)	400℃	0.17	0.19	0.21	0.21	0.30	0.40	0.43
	600℃	0.19	0.23	0.27	0.27	0.32	0.42	0.50
	800℃	0.22	0.24	0.30	0.30	0.35	0.44	0.51
	1000℃	0.24	0.25	0.32	0.32	0.38	0.45	0.53
	1200℃	—	—	—	0.35	0.39	0.47	0.55
Chemaical Composition (%)	Al2O3	42	45	45	55	65	72	75
	SiO2	54	54	51	41.5	32.5	25.7	23
	Fe2O3	0.8	0.8	0.9	0.8	0.6	0.5	0.4
	Ti02	1.2	1.2	1.3	1.0	0.7	0.7	0.6
	Cao+Mg0	0.7	0.7	0.7	0.7	0.5	0.5	0.3
	Na2O+k2O	1.3	0.3	1.1	1.0	0.9	0.8	0.7

Advantages of JM mullite bricks

High-temperature resistance, high compressive strength, good thermal stability, and excellent slag resistance.

Quality guaranteed. Rongsheng Refractory Material Factory uses professional testing equipment to conduct strict quality control on products to ensure high-quality delivery of products.

Custom processing. Mullite insulation bricks are available in JM26JM28JM30JM32 model bricks. The refractory products in our factory can be customized according to customer needs to ensure that they meet customer requirements.