| Principle: | Piezoelectric Type |
|---|---|
| Range: | 0-10m |
| Measurement Accuracy: | ±3mm |
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Borosilicate Tubular sight glass(which is the metarial of borosilicate glass tube ) has a wide variety of uses ranging from cookware to lab equipment as well as a component of high quality products such as implantable medical devices and devices used in space exploration.
Specifications
Borosilicate glass tube 3.3
Color: clear
Borosilicate COE3.3 glass tubing:
1. Diameter available: 3.5mm~300mm
2. Wall thickness: 0.5mm~12mm
3. Length: 30mm~3000mm
4. Regular sizes: 9*2, 12*2, 25*4, 28*4, 32*3.2, 32*4, 38*4, 44*4, 51*4, 50*5.
5. The high borosilicate 3.3 glass tube is used forlab equipment, optical, medical, daily glassware, solar energy, test tube, etc.
6. We can supply special dimensions according to request.
Chemical Composition
SiO2: 81%
B2O3: 13%
Na2O+K2O: 4%
Al2O3: 2%
| Physical Performance | Numerical Value | Unit |
| Coefficient of Mean Linear Thermal Expansion(ISO 7991) | 3.3±0.1 | 10 -6 K -1 |
| Transformation Temperature | 525±15 | °C |
| Softening Point (ISO 7884-6) | 820±10 | °C |
| Working Point (ISO 7884-2, ISO 7884-5) | 1260±20 | °C |
| Upper Cooling Temperature (ISO 7884-7) | 560 | °C |
| Lower Cooling Temperature (ISO 7884-7) | 510 | °C |
| Density at 20°C | 2.23±0.02 | g/cm 3 |
| Thermal Conductivity (20°C--100°C) | 1.2 | w/m 2 K |
| Specific heat capacity at constant pressure | 0.8× 10 3 | J×/Kg@K |
| Modulus of elasticity | 64 × 10 3 | MPa |
| Tensile strength | 35-100 | MPa |
| Poisson constant | 0.2 | |
| Refractive Index | 0.92 |
1.Can we get your free samples?
Yes, you can. Our free sample can be provided for our customers to test quality. But the freight for express is on buyer's account. The way we send it to you is via DHL, you can also call your local express to pick up samples from our office.
2.Can we do printing or label printing on the glass?
Yes, you can. We could offer various printing ways: screen printing, hot stamping, label printing.
3.What is the normal lead time?
For stock products, we will send goods to you within 24-48 hours after we receive your payment.For customer color bottle, we will ship out within 3-6 days.
4.What is your shipping terms?
A. For small trial order, FEDEX, DHL, UPS, TNT, etc can be provided.
B. For larger order, we can arrange shipment by sea or by air according to your requirement.
5.How does your factory do regarding quality control?
We do leak test for 3 times before packing.
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