thermal insulation brick

1. Low thermal conductivity 2. Low thermal capacitance 3. Low impurity content 4. High hot compressive strength

Items		Testing Temperature(°C)When reheated with 2% contracting rate	Volume Densityg/cm3	Pressure StrengthMpa	Thermal Conductivitykcal/mh°C(350°C)
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

thermal insulation brick