Premium clear fused silica quartz test tubes engineered for laboratory heating applications. Manufactured with 99.99% SiO₂ content, these tubes deliver high light transmittance, exceptional thermal shock resistance, and reliable performance at working temperatures up to 1100℃.
| Brand | Shengfan |
|---|---|
| Product Name | Quartz Glass Test Tube |
| SiO₂ Content | 99.99% |
| Density | 2.2 g/cm³ |
| Hardness (Moh's Scale) | 6.6 |
| Melting Point | 1732℃ |
| Working Temperature | 1100℃ |
| Annealing Point | 1180℃ |
| Softening Point | 1630℃ |
Every quartz tube is produced under controlled manufacturing conditions and subjected to strict quality control to ensure dimensional accuracy, optical clarity, and thermal reliability.
Lianyungang Shengfan Quartz Product Factory is a professional manufacturer specializing in the research, development, and production of quartz plates, quartz tubes, quartz flanges, quartz rings, cuvettes, and quartz instruments.
Located in China's Crystal Capital — Donghai City, Jiangsu Province, our facility is strategically positioned just 70 km from Lianyungang port, ensuring convenient transportation access.
Covering an area of 1,000 square meters, we employ over 30 skilled professionals and achieve annual sales exceeding USD 5.2 million. Guided by our core philosophy of Technology Orientation, Quality First, Integrity and Responsibility, and Sustainable Operation, we are committed to establishing an international enterprise with standardized processes and sustainable operational capabilities.
The company adheres to integrity in business, with extensive experience, reasonable pricing, quality assurance, and excellent after-sales service. We sincerely welcome customers to come and negotiate.
Q1. Can I have a sample order?
A: Yes, we welcome sample orders to test and check quality.
Q2. What about the delivery time?
A: Within 15 days after receiving deposit.
Q3. Do you have any MOQ limit?
A: Low MOQ, 1pc for sample checking is available.
Q4. How to proceed an order in your factory?
A: Firstly let us know your requirements or application. Secondly we quote according to your requirements or our suggestions. Thirdly customer confirms the samples and places deposit for formal order. Fourthly we arrange the production.
Q5. How do you ship the goods and how long does it take to arrive?
A: DHL, UPS, FedEx or TNT are optional for small orders. It usually takes 3-5 days to arrive. Airline and sea shipping are also available.