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Boron glass piece

Brand: ET
model: ET-001
place of origin: china
Colour: Transparent
Density: 2.2g/cm3
Silica content: 99.99
use: High temperature
Melting point: 1730
Annealing Point 1215
Deformation point 1120
Mohs hardness 7
Coefficient of expansion 5.5
Refractive index 1.4585
Price: $ 100  -  150
Discount Price: $ 75  -  90


The level gauge glass, also called the water level gauge glass or water level gauge glass, is a glass that is installed on a water level gauge or level gauge to observe or monitor the water level and oil level of the pressure vessel.

Chemical stability

Water resistance: <0.5mg/cm2

Acid resistance: <0.5mg/cm2

Alkali resistance: <80mg/cm2

Bending strength: 100~200Mpa

Hydraulic strength


Mechanical impact strength

1), round head steel ball with a diameter of 25mm, 2m high impact without cracks.

2), diameter 105mm4.65 kg iron ball (land) 2m high impact without cracks.

3), diameter 105mm4.65 kg iron ball (cement ground) 1m high impact without cracks.

Product size: width 34 or 30mm, thickness 17mm, length 85~500mm


We mainly do all kinds of quartz glass processing and manufacturing.




 Tel: +86-0518-87795018
 E-mail: linda@et-create.com
 Phone: +86-13775405985
 Add: NO 18, xinniu Road,Niushan Town,Donghai County


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