China clear high borosilicate glass tubs expansion rate 3.3

We have our own furance for the production of those high borosilicate glass tubes, we can customize the difference size / specifications as per  customers' demand, and the delivery time will be very short. our glass tubes can keep high brightness for longer time than other glass, and looks more transparent due to the borosilicate material.

we adopt platinum molding technology to produce borosilicate glass,our quality is super.

1.Material: high borosilicate glass 3.3

2. Size: OD 8-315 mm

3.Color: clear

4.Softening point: 820±10°C

5.Transformation temperature:525±15°C

6.Hydrolytic resistance at 90°C: ISO719-HGB1

7.Hydrolytic resistance at 120°C: ISO720-HGA1

8. Acid resistance class: ISO1776-1

9.Alkali resistance class: ISO695-A2

Applications: superior heat resisting products ,tea cup, crafts,laboratory,chemical plants