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Insulating Firebrick

Ningbo Forda Pipe Sealing Technology Co.,Ltd

Insulating Firebrick

Place of Origin : China

Brand Name : Seabol

Certification : ISO,API

Model Number : SLB-4208

MOQ : 1PC

Price : 1~100USD/KG

Packaging Details : 5-10PC/Wooden Case

Delivery Time : 15-20days

Payment Terms : TT,LC,DP

Supply Ability : 500PCS/Month

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Descrition:

Insulating Firebrick / Mullite Brick/ High alumina brick with light weight has high mini-porosity arranged in average, keep furnace wall low radiation.They can be used for hot face lining directly exposed to the heat or as a backup insulation layer.Light weight means the lowest thermal storage, it's quicker to heat and cool, and permit rapid cycle work.They are used for 800C~1500C

#Property

Light weight and low thermal conductivity reduce the thickness of the insulating layer
Maintain stable structural strength throughout ambient to maximum service temperature
Low heat storage results in rapid cooling and heating operation
Low iron and impurities to enhance reducing atmosphere;
High thermal shock resistance in preventing spalling;
Customize any size and shape
High spalling resistance
High hot compressive strength
Accurate dimensions
Roller kiln

Application

Rock wool products have the following application:

Lining of high-temperature kilns of industrial ceramics, industrial furnaces
Annealing furnaces
Galvanizing furnaces
Heat-treating furnaces
Air-heating furnaces
Naphtha cracking furnaces
Ceramic shuttle kilns;Roller Kiln
Metal heat treatment furnaces;
Steel billet reheating furnaces;
Oil refinery heaters;
Laboratory furnaces;
Reducing atmosphere furnace
Gas producers

Specification

Product Grade(insulating firebrick)

Grade

SL4208-23

SL4208-26

SL4208-28

SL4208-30

SL4208-32

Classification Temperature

° C

1260

1425

1538

1550

1600

Max Working Temperature

° C

1100

1300

1400

1450

1500


Chemical Composition

Grade

SL4208-23

SL4208-26

SL4208-28

SL4208-30

SL4208-32

A l 2 O 3

%

40

54

62

74

80

S iO 2

%

58

44

36

24

18

Fe2 O 3

%

1

0.8

0.7

0.6

0.5

CaO

%

0.5

0.4

0.3

0.2

0.1

Physical Properties

Grade

SL4208-23

SL4208-26

SL4208-28

SL4208-30

SL4208-32

Density

k g / m 3

800

800

900

1000

1100

Thermal Conductivity
W/(m. K)

400

° C

0.20

0.26

0.29

0.31

0.34

600

° C

0.24

0.29

0.32

0.34

0.39

800

° C

0.28

0.32

0.35

0.38

0.42

Cold Crushing Strength

Mpa

1.1

1.6

2.0

2.1

2.2

Modules Of Rupture

Mpa

1.0

1.2

1.5

1.8

2.0

Thermal Expansion at 1000 ° C

%

0.46

0.47

0.48

0.48

0.48

Reheat Shrinkage ° Cx8H

%

1300 ° C-0.2

1400 ° C-0.4

1500 ° C-0.4

1550 ° C-0.38

1600 ° C-0.38

Available Size

TK23

SL4208-23

SL4208-26

SL4208-28

SL4208-30

230X114X65 or 230x114x75

The size and shapes can be customized according requirement.

Competitive Advantage:

Competitive price, good quality


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