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Colored Borosilicate3.3 Glass Rods-Blue

Colored Borosilicate3.3 Glass Rods-Blue

  • TYR
  • TY
  • Blue
  • borosilicate glass tubing
  • diameter from 3.5-300mm, wall thickness from 0.8-12mm, length from 100-3000mm
  • China
  • bubble wrapped in paper carton on pallet in container
  • hand blown and lampworking glass tube
  • hand crafted,handmade, lampworking
  • heat resistance
  • 20kgs
  • 7 days-30days
OD-WT-L:

1.Normal Sizes for Heavy Wall(OD*W mm):

   25*4.0,32*3.2,32*4.0,38*3.2,38*4.0,44*4.0,51*4.0,51*4.8

   Normal length:1220mm

Customized Size: the diameter is from 3.5-300mm, Wall thickness from 0.8-12mm, length to 3000mm

2.Main Composition

   a) SiO2: 80±0.5%

   b) B2O3:13±0.2%

   c) Al2O3:2.4±0.2%

   d) Na2O(+K2O):4.3±0.2%


3.Physical and Chemical Properties

  a) Coefficient of mean linear thermal expansion(20/300℃):3.3±0.1(10-6K-1)

  b) Transformation temperature: 525±15℃

  c) Melting point::1,260±20℃

  d) Softening point:820±10℃

  e) Density at 20℃:2.23g/cm2

  f) Hydrolytic resistance at 98℃: ISO719-HGB1

  g) Hydrolytic resistance at 121℃: ISO720-HGA1

  h) Acid resistance class:ISO1776-1

  i)Alkali resistance class:ISO695-A2



4.  Borosilicate glass is a type of glass that includes at least 5% boric oxide. The boric oxide makes the glass resistant to extreme temperatures, and also improves its resistance to chemical corrosion. This glass is very popular in the manufacture of scientific instruments, and it was once widely used to make glass for kitchens as well. Today, soda-lime glass is the glass of choice for kitchenware, due to the fact that it is generally cheaper to produce.


Invention of borosilicate glass is generally credited to Otto Schott, a German glassmaker who worked in the 19th century. By the late 1800s, the process for making it had been refined, and in 1915, a famous line of borosilicate kitchen products was released under the Pyrex label. Because it is stronger and more durable than conventional glass, it has a number of far reaching uses.


Borosilicate glass is an all-purpose material for chemical applications for pipelines and laboratory uses thanks to its chemical and thermal resistance. It is widely used in architecture for external and interior designs, art and design, lighting concept (halogen lamp, flash lamp, UV lamp), gauge glass,laboratory glass, drain (drainline) and vent pipe, photobioreactors (PBR algae production),pneumatic conveying system.


We produce our borosilicate glass using electric furnaces with 15 glass drawing lines, allowing us to make clear and colored glass tubing and rods in round, square, rectangular, hexagonal and triangular profiles. We have a yearly production capacity of over 30,000 tons. 


Borosilicate Glass in Laboratory Applications


• Highly resistant to thermal shock


• Resistant to water, strong acids, alkali and saline solutions


• Complies with major standards (e.g. DIN ISO 3585 and ASTM E438 Type I, Class A)


• Established brand for glassblowing items in the laboratory sector


Borosilicate glass for Lighting


• Especially low thermal expansion, high resistance to thermal shock and high chemical resistance make it optimally suited for use in adverse conditions


• High optical and cosmetic qualities, no unwanted reflections or refractions


• Tight geometric tolerances allow for stable manufacturing processes and easy assembly


• Can be tempered upon request


Borosilicate glass for Engineered Systems and Plants


• A wide range of dimensions and variable lengths helps to reduce and/or eliminate the need for subsequent dilation or part assembly


• High geometrical accuracy and excellent optical properties allow easy assembly, high functionality in service and low levels of maintenance


• Exceptionally corrosion resistant, chemically inert and will not burn


• Longstanding glass know-how for engineered systems and plants (heat exchangers, ozone generators, chemical plant engineering)


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