High Density Linear Change Mullite Bricks Ceramic

Products Description

Mullite brick is characterized by good high temperature resistance and good thermal shock resistance, whick comes into being mullite through calcine with clay, high alumina materials and ceramics.

Products Specifications

Item		ZA-17	ZA-20 (Zirmul)	ZA-25 (Vista)	ZA-30	ZA-11
Chemical composition	Al2O3	≥70	≥59	≥57	≥47	≥72
	ZrO2	≥17	≥19.5	≥25.5	≥30	≥11
	SiO2	≤12	≤20	≤14.5	≤20	≤12
	Fe2O3	≤0.5	≤0.5	≤0.5	≤0.3	≤0.5
Apparent Porosity％		≤17	≤17	≤17	≤18	≤17
Bulk Density g/cm3		≥3.15	≥2.95	≥3.15	≥3.10	≥3.1
Cold Crushing Strength Mpa		≥90	≥100	≥120	≥100	≥90
0.1Mpa Refractoriness Under Load T0.6 ℃		≥1650	≥1650	≥1650	≥1650	≥1630
Permanent Linear Change On Reheating(%)1500℃X2h		±0.3	±0.3	±0.3	±0.3	±0.3
20-1000℃ Thermal Expansion % (x 10-6)		0-0.6	0-0.6	0-0.6	0-0.6	0-0.6
Thermal Conductivity (Average800℃) W / (M.K)		≤ 2.19	≤ 2.19	≤ 2.1	≤ 2.1	≤ 2.19
Pyrometric Cone Equivalent ℃ SK		31	31	31	31	31