Pyrex glass rods
Borosilicate 3.3 Glass Rod
Borosilicate COE 3.3 glass tube, also called as PYREX glass tube.
Similar with Schott's DURAN or Kavalier's SIMAX
Physical Property | ||||||
No. | Physical performance | Numerical Value | Unit | |||
1 | Coefficient of mean linear thermal expansion (20°C, 300°C) | 3.3±0.1 | 10-6K-1 | |||
2 | Transformation temperature | 525±15 | °C | |||
3 | Softening point | 820±10 | °C | |||
4 | Working point | 1260±20 | °C | |||
5 | Density at 20°C | 2.23±0.02 | g/cm3 | |||
6 | Mean thermal conductivity(20°C-100°C) | 1.2 | w/m2k | |||
7 | Refractive index | 0.92 | 1 | |||
Chemical Property | ||||||
Hydrolytic resistance at 98°C | ISO719-HGB1 | |||||
Hydrolytic resistance at 121°C | ISO720-HGA1 | |||||
Acid resistance Class | ISO1776-First Class | |||||
Main Composition | ||||||
SiO2 | B2O3 | Al2O3 | Na2O+K2O | |||
80±0.5% | 13±0.2% | 2.4±0.2% | 4.3±0.2% | |||
1. We're manufacturer, the price is much more competitive and the quality can be fairly controlled.
2. Can be customized by your size.
3. Have wide product lines:lamp covers, various glassware, optic glass products, glass tubes and rods, glass bulbs, and so on.
4. Various glass materials for products:optic glass, high clear glass, opal white glass, borosilicate glass or pyrex glass, soda-lime glass, low-iron glass, tempered glass, crystal glass, and so on.
5. With different process methods:moulding press, mouth blown, cutting, etc.
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