Type Refractory & Insulation

Insulation Firebricks

Lightweight Insulation bricks

Firebicks refractories

Mortar/cement

 

 

Insulation Firebrick Grade-28 – Lightweight (Mullite)

 

Karakterisitik:

a.       Kandungan iron oxide yang rendah

b.       Thermal conductivity yang rendah

 

Pemakaian:

a.       Hot face lining

b.       Back up insulation

c.        Reducing atmosphere furnace

 

Temperature        1538o C (2800o F)

 

 

ASTM

SPECIFICATION

AVERAGE

Bulk Density      

g/cm3

Group 26

0.96 max

0.88

Thermal Conductivity

W/mKkcal/moC)

at 350oC JIS R2616

0.26

(0.22)

W/mKkcal/moC)

at 400oC ISO 8894

0.34

(0.29)

W/mKkcal/moC)

at 600oC ISO 8894

0.37

(0.32)

W/mKkcal/moC)

at 800oC ISO 8894

0.41

(0.35)

Cold Crushing Strength

MPa

C93

-

1.4

Modulus of Rupture

MPa

C93

-

1.3

Reheat Shrinkage

(oC x 24 hrs)

%

C210 JIS R26 13

-

0.73 (1510oC)

(oC x 8 hrs)

%

C210 JIS R26 13

-

0.40 (1500oC)

Thermal Expansion at 1000 oC

%

JIS R26 17

-

0.48

Chemical analysis

Al2O3

%

JIS R2216

-

62

Fe2O3    

%

JIS R2216

-

0.80

Mortar

Mortar 1400

Standard Packing

10 pcs / pack for standard size

 

 

 

Lightweight Brick Grade-23 (1230 C)

Lightweight Brick Grade-25 (1300 C)

Lightweight Brick Grade-26 (1400 C)

Lightweight Brick Grade-28 (1500 C)

Lightweight Brick Grade-30 (1550 C)

Lightweight Brick Grade-32 (1600 C)

 

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