China clear high borosilicate glass 3.3 tube Wall Thickness :8-24mm

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We have our own furance for the production of those glass tubes, we can customize the specifications to the customers' demand, and the delivery time will be very short.

1. Our glass tubes can keep high brightness for longer time than other glass, and looks more transparent due to the borosilicate material.
2. The outer diameter is *0~**5mm, wall thickness is 1.0~*0mm, and the length is free
3. We adopt platinum molding technology to produce OD *4 mm***5mm borosilicate glass.

 High borosilicate glass products,

We can provide a full range of borosilicate glass products, such as borosilicate tube, glass rods 

Glass tube OD from 8mm~**5mm

Glass tubes wall thickness:1.***0 mm
Glass rods dia from 6~*2mm


Technical data for glass tube
Main composition:
1) SiO2: *0± 0.5%
2) B2O3: *3± 0.2%
3) Al2O3: 2.4± 0.2%
4) Na2O(+K2O): 4.3± 0.2%


Chemical properties:
1) Coefficient of mean linear thermal expansion (*0° C/**0° C):
3.3± 0.1 (***6K*1)
2) Transformation temperature: **5± *5° C
3) Working point: 1, **0± *0° C
4) Softening point: **0± *0° C
5) Density at *0° C: 2.*3G/cm
6) Hydrolytic resistance at *8° C: ISO***-HGB1
7) Hydrolytic resistance at **1° C: ISO***-HGA1 

Feature of  3.3 high borosilicate glass

The material is high borosilicate 3.3. Which imported from European,super quality raw

 material assure us supply quality goods.
 Borosilicate 3.3 series glass is a kind of special type glass material with the features of

 low expansion coefficient,high temperature resistance,high intensity, high rigidity, 

transparency and chemical stability. It doesn't explode in high temperature, and can be

 forged and drawn to variety of formation when soften.

 All these splendid features enable it to be widely used in the field of solar energy,

chemical industry, pharmaceutical packaging, electric light source,artificial crystal, 

artificial craft decoration and so on.Compared with ordinary glass. It's non poisonous,

 and it has made the big progress in its mechanical property, thermal stability, hydrolytic 

resistance.acid resistance and alkali resistance glass.

Applications: superior heat resisting products and crafts,raw glass materials, solar products, 

glass crafts, pharmaceutical packing, glass instruments, lamp decorations, glass houseware, etc.