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Various Size colorful high borosilicate glass tube/test tube(379)
Zibo Chuangyou International Trade Co., Ltd. is first established in 2006, specialized in sales of borosilicate glass tube. Our glass tube is of 3.3 Expansion rate, with feature heat resistant, chemical resistant is widely used for making laboratory glassware, handcraft, lightings, solar tube. We devoted in providing our global customers with professional and first-class service. In order to fulfill this goal, our employees from purchasing, international sales, QC, finance department all work together with our full passion and knowledge, totally we have around 15 people in our team.
We are also able to cater to your specific needs by providing fantastic OEM service as well, including further decoration such as frosting, color praying, decal printing, screen printing, and customized new design by making new mould.
From client consultation to the delivery of products, we arrange professional sales people to follow up on your cast, to ensure that you know latest status of the products. If you have any questions about our service and products, our staff will be there to help you.
Currently we are working with customers from USA, Australia, Brazil, India, South-East Asia, we are looking forward to start new cooperation with friends all over the world.
| Varity | Clear / Color Borosilicate Glass Tubes |
| Spec | O.D from 4mm~315mm, W.T from 0.8mm~9mm |
| Usage |
Kitchenware; Lighting Decorations; Chemical equipment; Solar Vaccum Tubes; |
| Size Specification:Customize specifications according to your demands | |||||
| Details | Diameter | Thin Wall | Medial Wall | Thick Wall | |
| Capillary Tube | 4mm-5mm | 0.8mm-2mm | |||
| 6mm-20mm | 0.8mm-1.0mm | 1.2mm-2.9mm | 3mm-4mm | ||
| Standard Tube | 21mm-60mm | 1mm-1.2mm | 1.2mm-2.9mm | 3mm-9mm | |
| 61mm-100mm | 1.8mm-2.9mm | 3mm-9mm | |||
| Large Diameter | 101mm-120mm | 1.8mm-2.9mm | 3mm-9mm | ||
| 121mm-315mm | 3mm-9mm | ||||
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Tips: Capillary Tube is a glass tube with small internal diameter and thick wall,used in thermometers,etc. | |||||
| Delivery Time | Within 20days after received the advance payment. |
| Payment | 30%-50% TT in advance and balance against copy of BL. |
| Transport | By ship or express |
| Material | Borosilicate glass 3.3 |
| Chemical Properties | Stable |
| Coefficient of mean linear thermal expansion | 3.3 |
| Main composition | SiO2,B2O2,Al2O3,Na2O |
| Physical performance | Numerical Value |
| Transformation temperature | 525±15 °C |
| Softening point | 820±10 °C |
| Working point | 1260±20 °C |
| Density at 20°C | 2.23±0.02 g/cm3 |
| Mean thermal conductivity(20°C-100°C) | 1.2 w/m2k |
| Refractive index | 0.92 |
| Further process |
Inside frost ,outside frost ,hole on the tube, decal printing |
| Customized logo/size/shape | Available |
| Characteristics |
Good anticorrosion ;high temperature resistance ; high transparency |
| Coefficient of mean linear thermal expansion(20°C, 300°C) | 3.3±0.1 10-6K-1 |
Hydrolytic resistance at 98°C |
ISO719-HGB1 |
| Hydrolytic resistance at 121°C | ISO720-HGA1 |
| Acid resistance class | ISO1776-1 |
Alkali resistance class |
ISO695-A2 |
Packaging & Shipping:
