Mullite Insulating Bricks

mullite insulating bricks

High strength,good thermal shock resistance

Low heat storage, low thermal conductivity

Good thermal insulation effect

Low impurity content

High hot compressive strength

Accurate dimension

specification

Items		Testing Temperature(℃) When reheated with 2% contracting rate	Volume Density g/cm3	Pressure Strength Mpa	Thermal Conductivity kcal/mh℃ (350℃)
A	A-1	900	≤0.50	≥0.50	≤0.13
	A-2	1000	≤0.50	≥0.50	≤0.14
	A-3	1100	≤0.50	≥0.50	≤0.15
	A-4	1200	≤0.55	≥0.80	≤0.16
	A-5	1300	≤0.60	≥0.80	≤0.17
	A-6	1400	≤0.70	≥1.00	≤0.20
	A-7	1500	≤0.75	≥1.00	≤0.22
B	B-1	900	≤0.70	≥2.50	≤0.17
	B-2	1000	≤0.70	≥2.50	≤0.18
	B-3	1100	≤0.75	≥2.50	≤0.20
	B-4	1200	≤0.80	≥2.50	≤0.22
	B-5	1300	≤0.80	≥2.50	≤0.23
	B-6	1400	≤0.90	≥3.00	≤0.27
	B-7	1500	≤1.00	≥3.00	≤0.31
C	C-1	1300	≤1.10	≥5.00	≤0.30
	C-2	1400	≤1.20	≥7.00	≤0.38
	C-3	1500	≤1.25	≥10.00	≤0.45