Characteristic

·         Low iron oxide       

·         Low  thermal conductivity 

·         High spalling resistance

Application

·         Hot face lining 

·         Back up insulation

·         Reducing atmosphere furnace

Classification temperature

1427^o C ( 2600^o F )

ASTM

SPECIFICATION

AVERAGE

Bulk density

g / cm³

Group 26

  0.86 max

  0.78

Thermal conductivity

W / mK

(kcal / m h^o C)

at 350^oC JIS R2616

at 400^oC ISO 8894

at 600^oC ISO 8894

at 800^oC ISO 8894

  0.22 (0.19)

  0.30 (0.26)

  0.34 (0.29)

  0.37 (0.32)

Cold crushing strength

MPa

kgf / cm²

C 93

-

-

  1.4 

 14

Modulus of rupture

MPa

kgf / cm²

C 93

-

-

  1.2

 12

Reheat shrinkage

at ^o C x 24 hrs

at ^o C x 8 hrs

%

C 210

JIS R 2613

   2.0 max

  0.48 (1400^oC)

  0.40 (1400^oC)

Thermal expansion at 1000° C

JIS R2617

-

  0.44

Chemical analysis - JIS R2216

%

Al₂ O₃

-

 40.1

Si O₂

-

 56.1

Fe₂ O₃

-

   1.0

Dimensional tolerance - JIS R2150

mm

length

230

+ 3.5

+ 1.0

width

114

+ 2.0

+ 1.0

thickness

65

+ 2.0

+ 1.0

Recommended Mortar

HAS - D    

Standard Packing

10 pcs / pack for standard size