Refractory Crucible

Ideal for frit tests and small production batches, crucibles are available in a wide range of formats.

SiO2 35-40

Al2O3 60-65

Fe2O3 <2

CaO + K2O + Na2O <2

Water absorption 9-11%

Bulk density 2.0-2.2 g/cm3
Pore 20-23%

Coefficient of thermal expansion: 3.2-3.7x10-6 /K
Thermal shock resistance: Very good
Recommended max. operating temperature: 1500°C

Origin : ITALY