Al2O3

48.75%

SiO2

44.40%

Fe2O3

.86%

MgO

4.61%

TiO2

.47%

CaO

.07%

Na2O + K2O

.84%

Thermal Shock Resistance

excellent

Maximum Working Temperature

2336 F

Thermal Expansion

1.06 x 10-6 in/in/F

Apparent Specific Density

129 pcf

Apparent Porosity

21.50%

Water Absorption

10.40%

Modules of Rupture

>21.75 psi