Lightweight Clay Bricks

Lightweight clay bricks feature high porosity, low bulk density, and low thermal conductivity. They are used as thermal insulation materials for industrial kilns to reduce heat loss and save energy.

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Physical and Chemical Indicators

Item	NG1.5	NG1.3	NG1.2	NG1.0	NG0.8	NG0.6	NG0.5
Bulk Density (g/cm³)	≤ 1.5	≤ 1.3	≤ 1.2	≤ 1.0	≤ 0.8	≤ 0.6	≤ 0.5
Cold Crushing Strength (MPa)	≥ 6	≥ 5	≥ 4.5	≥ 3.5	≥ 2.5	≥ 1.3	≥ 1.0
Permanent Linear Change (%) (-2 ~ 1)	1400℃×12h	1350℃×12h	1300℃×12h	1250℃×12h	1200℃×12h	1150℃×12h
Thermal Conductivity W/(m·K) 350±25℃	≤ 0.65	≤ 0.55	≤ 0.50	≤ 0.40	≤ 0.35	≤ 0.25	≤ 0.23

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