$Mullite Refractory Brick$

Mullite Refractory Brick

1.High refractoriness,
2.Good thermal shock resistance,
3.Strong acid erosion resistance,
4.High high-temperature strength,
5.Great wear resistance,
6.Low thermal expansion coefficient,
7High thermal conductivity.

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+86 185 3831 2977
sales@hy-refractory.com
10th & 11th Floors,
No.6 Building, CCEC Port, Daxue Road, Erqi District, ZhengZhou 450000, Henan, China

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Description

Mullite Refractory Brick Introduction

Mullite Bricks are an excellent quality high alumina refractory product with about 65~75 percent alumina content. Mullite brick is made of mullite as the main raw material and molded through high temperature firing and pressure. Mullite bricks have advantage performance on furnace and kiln application such as high temperature resistance, chemical and mechanical corrosion, good thermal shock resistance and so on.

Application of Mullite Brick

Mullite bricks are mainly used for top of hot blast stove, stack and bottom of blast furnace, regenerative chamber of glass melter, ceramic post sintering kiln, furnace lining for dead angle of petroleum cracking and etc.

Mullite Brick Technical Data

Mullite Bricks
Item		MU 60	MU 65	MU 70	MU 75
Chemical Composition	Al2O3	≥60	≥65	≥70	≥75
	SiO2	≤35	≤33	≤26	≤24
	Fe2O3	≤1.0	≤1.0	≤0.6	≤0.4
Bulk Density g/cm3		≥2.55	≥2.55	≥2.55	≥2.55
Permanent Linear Change On Reheating (%) 1500℃X2h		0~+0.4	0~+0.4	0~+0.4	0~+0.4
Apparent Porosity %		≤17	≤17	≤17	≤18
Thermal Conductivity (W/MK) 1000℃		1.74	1.84	1.95	1.95
Cold Crushing Strength Mpa		≥60	≥60	≥80	≥80
20－1000℃ Thermal Expansich10-6/℃		0.6	0.6	0.6	0.55
0.2Mpa Refractoriness Under Load T0.6 ℃		≥1580	≥1600	≥1600	≥1650
Thermal Shock Resistances 100℃ water cycles		≥18	≥18	≥18	≥18