Mullite Insulation Brick - RS Kiln Refractory Bricks

Mullite Insulation Brick Introduction

The mullite insulation brick is a kind of insulation material which is adopting organic matter as ignition loss substance in order to increase the porosity of refractory, light weight mullite bricks have the characteristics of high porosity, small volume density, good insulation effect, high mechanical intensity, small thermal conductivity and long service life. Mullite insulating bricks can be used in various industrial kilns & furnaces, such as glass furnace, cement rotary furnace, etc. Mullite insulating fire brick is a kind of essential refractory material for energy saving and temperature preservation.

Mullite Insulation Brick Properties

Low thermal conductivity
High cold crushing strength
Perfect Energy saving
Stable volume
Excellent heat insulation
High intensity for pressure
Good thermal shock stability

Mullite Insulation Brick Physical & Chemical Index

Mullite Insulation Brick
Item/Index		RS23	RS26	RS28	RS30	RS32
Al2O3 %		37	54	64	72	77
Fe2O3 %		1.0	0.9	0.8	0.7	0.5
Thermal Conductivity (w/m*k)	400℃	0.14	0.27	0.32	0.41	0.49
	600℃	0.16	0.29	0.34	0.43	0.5
	800℃	0.18	0.31	0.36	0.44	0.51
	1000℃	0.20	0.33	0.38	0.45	0.53
Classification Temperature (℃)		1260	1430	1540	1650	1760
Thermal Expansion 1000℃ (%)		0.5	0.7	0.8	0.9	1.1
Bulk Density (g/cm3)		0.55-0.62	0.78-0.8	0.88	1.03	1.25
Cold Crushing Strength (Mpa)		1.2	1.6	2.1	2.5	3.5
Modulus of Rupture (Mpa)		0.9	1.4	1.6	2.1	2.1
Reheating Linear Change (%) CT-30℃*8H		1230℃ -0.5	1400℃ -0.5	1510℃ -0.5	1620℃ -0.9	1730℃ -0.9

Mullite Insulation Brick Application

Glass furnace
Sodium silicate furnace
Frit furnace
Metallurgical furnace
Ceramic shuttle kiln
Cement rotary kiln
Tunnel kiln

Mullite Insulation Brick Manufacturer

RS refractory manufacturer is specialized in producing various lightweight refractory bricks, such as mullite insulating bricks, high alumina insulation brick, alumina bubble brick, clay insulation brick, silica insulation brick, etc. The insulation bricks from RS refractory supplier adopt high quality raw materials and by strict inspection control, so if you want to purchase lightweight refractory brick, you can feel free to contact with us!