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Physical Properties:

                                             Range                                                   Glass

Soft Glass
(Soda Lime)

Borosilicate

Quartz
(Fused Silica)

Softening Range

696 o C

821 oC

1580 oC

Working Range

1000 oC

1200 o C

1800 oC

Annealing Range

514 oC

565 oC

1050 oC

Max. Service Temp.

450 oC

490oC

1100 oC

The information in this section should be used as a source of comparative figures only, representing a broad range of glasses within their respective family groups. For specific technical data each glass should be identified as to manufacturer and glass code number.


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