Item

FS99

FS95H

FS95C

Bulk Density                  (g/cm³⁾

≥1.85

≥1.85

≥1.80

Apparent Porosity              (%)

≤18

≤20

≤20

Cold Crushing Strength         (Mpa)

≥45

≥45

≥30

Thermal shock resistance at 1100℃                    

(water)                      (cycles)

＞30

＞30

＞30

Refractoriness under load       (t a ℃)

≥1680

≥1550

≥1650

Thermal expansion at 1000℃    (%)

≤0.2

≤0.2

≤0.2

Thermal conductivity

(W/m.k) 

400℃

≤1.4

--

--

800℃

≤1.6

--

--

1000℃

≤1.7

--

--

1200℃

≤1.8

--

--

Chemical Composition

 (％)

SiO2

≥99

≥96

≥97

AL2O3

≤0.5

≤3

--

Fe2O3  

≤0.2

≤0.2

≤0.2

CaO

--

--

3.0