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Insulating Firebrick

• Low thermal conductivity
• Low heat storage
• Good thermal shock resistance
• High hot strength
• Stable chemical performance

Contact information

+86 16653308860

Email：inquiry@victoglobal.com

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PRODUCT DESCRIPTION

Product Features

• Low thermal conductivity

• Low heat storage

• Good thermal shock resistance

• High hot strength

• Stable chemical performance

Typical Applications

• Ceramic kiln lining

• Heat treatment furnace insulation

• Petrochemical equipment lining

• Lab high-temperature furnaces

• Tunnel kiln wall & roof insulation

Technical Sheet

Model		SM23	SM26	SM28	SM30
Classification Temperature (℃)		1260	1430	1540	1650
Chemical Composition (%)	Al₂O₃	43	55	65	73
	SiO₂	51	41	32	25
	Fe₂O₃	≤1.0	≤0.9	≤0.8	≤0.7
Density (g/cm³)		0.6	0.8	1.0	1.0
Modulus of Rupture (MPa)		1.0	1.5	1.8	1.9
Cold Crushing Strength (MPa)		1.5	2.4	2.6	3.2
Permanent Linear Change (%)		1230℃×24h≤0.3	1400℃×24h≤0.6	1510℃×24h≤0.7	1620℃×24h≤0.9
Thermal Conductivity (W/m·K)	200℃	0.15	0.26	0.29	0.35
	350℃	0.18	0.28	0.30	0.36
	400℃	0.19	0.29	0.32	0.37
	600℃	0.23	0.32	0.38	0.41

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