Compotion

SiO₂

Fe₂O₃

K₂O

Size

Content

99.5% Min.

0.005%Max.

0.003% Max.

3-1/1-0mm;-0.045mm

SiO₂

Al₂O₃

K₂O+Na₂O

MgO

CaO

Fe₂O₃

99.20% Min.

0.58% Max.

0.1% Max.

0.1% Max.

0.1% Max.

0.1% Max.

TiO2

Volume Density (g/cm³)

Apparent porosity

Cold compressive strength

Thermal shock stability (1100 ℃, Cold water test)

Microscale

1.91 Min.

14% Max.

45 Mpa Min.

5 times Min.

Remarks: Heavy Firing Line Change: Provider offers testing data ( 1600℃heating  x heat preservation 2h  & 1400℃heating  x heat preservation 2h)