Product Overview
Description
Product Description
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% | |||
Packaging & Shipping
Our Services
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.
Company Information
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