Low thermal conductivity Fire clay brick

Application: Furnaces of metallurgy industry, heat treatment furnace, chemical industry and construction industry.

Features

1. Low bulk density, low thermal conductivity, good thermal insulation performance.

2. Refractory category allow direct contact of fire, suitable ofr various atmosphere

3. Good integrity with furnace lining, long service life, easy operation, could be shaped freely

4. Product specification: standard form, normal standard, shaped and special shaped bricks.

5. Can be used in various kilns because of its cheapness and general tray package. Among all of the refractory materials, it is the most widely used.

Applications

1. Furnaces of metallurgy industry, heat treatment furnace

2. Furnaces of chemical industry and construction industry.

3. Furnace of incineration of garbage, recirculating fluidized bed furnace

Standard sizing: 230 x 114 x 65 mm others up to the client

physical and chemical indicator of clayey refractory bricks 

Item		Properties
		N-1	N-2a	N-2b	N-3a	N-3b	N4	N5	N6
Refractoriness°C		1750	1730	1730	1710	1710	1690	1670	1580
Softening temperature under load		1400	1350		1320		1300
Permanent linear change%	1400°CX 2h	+0.1 -0.4	+0.1 -0.5	+0.2 -0.5
	1350°CX 2h				+0.2 -0.5	+0.2 -0.5	+0.2 -0.5	+0.2 -0.5
Apparent  porosity%		22	24	26	24	26	24	26	28
Cold Crushing strength MPa		30	25	20	20	15	20	15	15
Bulk density,g/cm3		2.0-2.2
Application		All industrial furnace

Low thermal conductivity Fire clay brick