Characteristic

*         Needled blanket

*         Non-combustible

*         Can withstand temperature up to 2300^o F

*         Low density and low thermal conductivity

*         Shorter heat up and cool down time

*         Resilience and resistance to thermal shock

*         Flexible and easy to cut or install

*         Consist of acoustic properties

*         Contain no organic binder

*         Asbestos free

                         Application

*         Refractory back-up installation

*         Direct exposure to heat as furnace hot face lining

*   Expansion joint seal

*  Fire protection

*     General high temperature insulation

Classification temperature

1260^oC (2300^o F)

Melting point

1760^oC (3200^o F)

Fiber diameter

2.8 micro meter

Fiber length

100 mm average. ~250 mm max.

Tensile strength

5 kg / 25 x 25 mm of 128 kg / m³ 25 mm thickness

Specification

Average

Bulk density

kg / m³

115-150

85-115

58-85

128

96

64

Liner shrinkage

1100^oC x 24 hrs

%

<  3.0

1.8

Shot content

 >212micro meter

%

< 25

18

Thermal conductivity

Kcal/mh^o   C (W/mK)

ASTM C201

Specification

Average

128 kg/m³

mean 400^oC

<  0.11 (0.13)

0.06 (0.07)

mean 600^oC

<  0.16 (0.19)

0.10 (0.12)

mean 800^oC

<  0.22 (0.25)

0.14 (0.16)

96 kg/m³

mean 400^oC

<  0.12 (0.14)

0.10 (0.12)

mean 600^oC

<  0.17 (0.20)

0.15 (0.17)

mean 800^oC

<  0.25 (0.29)

0.22 (0.25)

Chemical composition %

Al₂O₃

>  45

47.1

Al₂O₃ + SiO₂

>  98

99.4

Dimension

Tolerance

Length

7200

mm

3600 mm

14400 mm

+ 4%

- 0%

Width

610 mm

610mm

610mm

+ 5%

- 5%

Thickness

12.5 mm

12.5

+ 1.5 mm

- 1.5 mm

20mm

+ 2 mm

- 2 mm

 25 mm

50 mm

+ 4 mm

- 4 mm