Robox:Glass Ceramic Clear Glass

Robax^® is a highly transparent glass-ceramic having virtually zero thermal expansion and sufficient mechanical resistance required for all standard applications. It is produced as flat sheets using a rolling process.

As a result of its extremely low thermal expansion, Robax^® can be subjected to extreme temperature differences. Even when used in high temperature conditions, Robax^® maintains excellent stability of form. can be further processed mechanically using all of the normal methods in glass processing.

Robax^® processes a high degree of resistance against thermal stresses and chemical surface attacks. Its diverse range of application include: fireplace doors and windows, chemical process sight glass, high temperature vision windows, heat insulators, commercial oven/boilers, architectural and outdoor lighting, electronics and UV light wave blocking applications.

Glass Code: Schott					Robax
Type					Glass-Ceramic
Color					Clear
Principal Use					Industrial
Thermal Expansion	Multiply by 10^-7K¹	20-700° C			5.0
	Multiply by 10^-7 °R^-1	38-1292 °C			2.8
TSR (Thermal Shock Resistance)		1260° R			700 K
RTD (Resistance to Thermal Diffiernece)		1260° R			700 K
Density g/cm³					2.6
Young's Modulus (93 GPa)/Msi					13.5
Poisson's Ratio					0.25
Temperature/Time Load Capacity: specifies the maximum allowed temperature for the given load times for the practical use as fireplace panels below which no cracking due to thermal stress occurs. The temperature values refer to the hottest point on the exterior side of the panel (T _Tes,max)				700° C	5000 hr.
				750° C	1000 hr.
				775° C	100 hr.
				800° C	10 hr.
				825° C	5 hr.
Temperature/Time Load Capacity: for homogeneous heating conditions in a testing furnace, the following temperature time load data applies. Not that this table is not applicable for fireplace panels which typically have uneven temperature distributions. The temperatures refer to the homogenous heat\ting of Robax^® panels. (T _Hom)			700 ° C		6000 hr.
			750° C		750 hr.
			775° C		275 hr.
			800° C		100 hr
			825° C		35 hr

Available in thickness 3.0mm and 5mm Maximum Sheet Size 1580 mm (62.2") x 840mm (33.1")