Description
Main
composition:
1) SiO
2: *0±0.5%
2) B
2O
3: *3±0.2%
3) Al
2O
3: 2.4±0.2%
4) Na
2O(+K
2O): 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/cm²
6) Hydrolytic resistance at *8°C:
ISO***-HGB1
7) Hydrolytic resistance at **1°C:
ISO***-HGA1
8) Acid resistance class:
ISO*****1
9) Alkali resistance class:
ISO***-A2
1. Regular size:*5*4.0mm,*8*4.0mm,*2*4.0mm,*8*4.0mm,*4*4.0mm,
*1*4.8mm, *1*7.0mm,*1*9mm
2. Regular length:***0mm
3. We can customize unconventional specifications according your
demand : outside diameter: ****0mm,wall thickness :0.***0mm.
Max length for small tubing(diameter*8mm):***0mm.
Usuage:
1.solar vacuum tube.
2. lighting.
3. glass blowing.
4. glass arts&crafts.
5.glassware like bongs and hookahs.
6.medical packaging.
7.laboratory intrusments and so on....
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Company Description Huailai Tianyuan Special Type Glass Co.,
Ltd., established in ***2, lies in Huailai County, Hebei Province.
Our company covers an area of *0,**0 m2 and has more than **0
employees now. Being **0km away from Beijing City, we are bestowed
of convenient transportation and excellent investment
environment.
We mainly produce the 3.3 series borosilicate glass, especially the
borosilicate colored glass rods and tubes as a mainstay of our
products. With massive capacity of producing borosilicate colored
glass tubing and rod...
