Highly durable heat-resistant glass tubes that withstand rapid temperature changes! Suitable for laboratories and chemical plants.
The heat-resistant glass tube "Duran" is a special borosilicate glass with very high water resistance. Duran products are well known for their stability, excellent workability, and high durability against sudden temperature changes. They have very low thermal expansion, making them suitable for use in laboratories and large-scale chemical plants. Additionally, they have high corrosion resistance and maintain neutrality against strong chemical agents, which is advantageous compared to other materials. Borosilicate glass not only has high water and acid resistance but also exhibits high durability against saline solutions, various compounds, and halogen substances. **Features of Duran Heat-Resistant Glass Tubes** - High stability, excellent workability, and high durability against sudden temperature changes - Very low thermal expansion, suitable for use in laboratories and large-scale chemical plants - High corrosion resistance, maintaining neutrality against strong chemical agents, advantageous compared to other materials - Duran glass tubes and rods have high durability against alkalis and possess very high precision in all sizes *For more details, please refer to the PDF document or feel free to contact us.*
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basic information
**Temperature Change Durability** The temperature change durability in accordance with IS0718 refers to the temperature difference at which cracks appear in half of the samples due to thermal shock between a hot sample and cold water (room temperature). The temperature change durability of glass tubes and glass rods is influenced by the thickness of the glass, shape, surface characteristics, elasticity, and end treatments. Uneven or rapid heating or cooling of the glass can cause it to break due to the thermal stress applied. Care should be taken not to exceed a temperature difference of 120°C. Furthermore, if the glass is thicker, the allowable temperature difference becomes even smaller. Please refer to the following list for the measurement results of glass tubes and glass rods made from Duran borosilicate glass 3.3. ■ Glass Tubes - Outer diameter 50.5 / Thickness 5.00mm: 220°C - Outer diameter 133.0 / Thickness 7.00mm: 180°C - Outer diameter 120.0 / Thickness 8.00mm: 180°C ■ Glass Rods - Diameter 24.0mm: 140°C *For more details, please refer to the PDF document or feel free to contact us.*
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【Examples of Use】 ■ Test tubes and filter equipment in research institutions and the chemical industry ■ All types of cooling devices and distillation equipment ■ Large-scale chemical plants and wastewater treatment plants ■ Drainage pipes and measurement or control technology ■ Solar collectors and exhaust gas desulfurization devices ■ Heat exchangers, explosion-proof pipes, and flow meters *For more details, please refer to the PDF materials or feel free to contact us.
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We specialize in the manufacturing and sales of specialty glass, including custom glass processing tailored to your desired shapes and conditions, various glass tubes, and standard glass for water level gauges. We produce glass for a wide range of applications, including industrial, commercial, and research uses. Our in-house processing allows us to flexibly accommodate small lots and short delivery times. Even for shapes and conditions that are difficult for a single company to process, we can achieve them through our long-established network of partner companies.