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85% Min Alumina Bubble Brick For High Temperature Furnace

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Acid Resistant Insulating Silica Fire Brick For Glass Kiln

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$Refractory Light Weight Mullite Insulation Brick Fire Rated MD-0.6 230*114*65mm$

Refractory Light Weight Mullite Insulation Brick Fire Rated MD-0.6 230*114*65mm

Chrome Zircon Mullite Brick , High Temperature ,High quality Brick For Glass Furnace

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Light Weight Refractory Mullite Insulating Bricks JM23 JM26

White High Purity Corundum Mullite Brick 230 X 114 X 65mm Size For Furnace

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JM23 JM26 Refractory Mullite Insulation Brick

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Glass Furnace Lining Mullite Insulation Brick 1700C Insulating Fire Bricks Jm26 Jm28 Jm32 Refractory Brick

Light Weight Insulation White Color Mllite JM28 Brick for Industrial Furnace

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Square Shape High Purity Refractory Fire Bricks White Color For Glass Furnace

230*114*65 Mm White Mullite Bricks with High Heat Resistance Performance

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Corundum Mullite Refractory Bricks Customized Size For Industrial Kiln

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Refractory Material High Density Brick , Customized Size Furnace Brick For Industrial

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
Apparent Porosity％		≤17	≤17	≤17	≤18
Bulk Density g/cm3		≥2.55	≥2.55	≥2.55	≥2.55
Cold Crushing Strength Mpa		≥60	≥60	≥80	≥80
0.2Mpa Refractoriness Under Load T0.6 ℃		≥1580	≥1600	≥1600	≥1650
Permanent Linear Change On Reheating (%)1500℃X2h		0～+0.4	0～+0.4	0～+0.4	0～+0.4
Thermal Shock Resistances 100℃ water cycles		≥18	≥18	≥18	≥18
20－1000℃ Thermal Expansich10-6/℃		0.6	0.6	0.6	0.55
Thermal Conductivity (W/MK) 1000℃		1.74	1.84	1.95	1.95

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