JM28 Insulation Brick

JM28 Insulation Brick Introduction
 
JM28 Insulation Bricks are made from high purity refractory materials by unique technology, so they have a lot of advantages such as stable volume, excellent thermal stability, high intensity, and low thermal conductivity. They are an ideal kind of energy-conserving products, which can be widely used as linings or as thermal preservations layes in various industrial furnaces and kilns in metallurgical industry, ceramic industry, chemical industry and machinery industry.
 
Application of JM28 Insulation Brick
 
Glass industries iron & steel industries.

Ceramics industries non-ferrous metals industries.

Electrolytic Aluminum industries power generation industries.

Heat surface fireproof lining other fire-proof back lining.
 
JM28 Insulation Brick Specification

JM 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