Refractory Bricks
Clay insulating firebrick for metallurgy industry

Clay insulating firebrick for metallurgy industry

Clay insulating firebrick application:

1.Lower the heat capacity of the furnace

2. Used normally in industry furnaces such as Blast furnace, hot-blast furnace and EAF etc

3.Reheating furnace, Cement kiln, Tunnel kiln,boiler, coke oven, carbon furnace,glass kiln ,

4. Steel smelting furnace and various kiln lining and thermotechnical equipment, etc

Physical and chemical properties

Items

Clay insulating bricks

High alumina insulating bricks

NG-0.5

NG-0.6

NG-0.8

NG-1.0

LG-0.6

LG-0.8

LG-1.0

Bulk density g/cm3

0.5

0.6

0.8

1.0

0.6

0.8

1.0

Crushing strength Mpa,

1.5

2.0

2.5

3.4

1.96

2.94

4.00

Reheating linear change within 2% under tempetature°C

1250

1300

1350

1350

1350

1400

1450

Thermal conductivity W/m.k)

0.18

0.25

0.35

0.50

0.25

0.32

0.45

0.1Mpa refractoriness under load °C,

1160

1250

1280

1300

1300

1350

1380

Al2O3 % ,

35

40

42

42

50

52

52

Fe2O3 % , ≤

2.5

2.5

2.0

2.0

1.8

1.6

1.5

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