Hot Sale Borosilicate Glass Tube Price
Hot sale borosilicate glass tube price :
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General Characters
-High purity, SiO2>99.9%
-High temperature resistance
-Anti-corrosion
-Electrical insulation
-High spectral transmission >90%
-High temperature stability
| Physical properties | |
| SiO2 : | 99.99% |
| Density : | 2.2(g/cm3) |
| Degree of hardness mosh' scale : | 6.6 |
| Coefficient of expansion 25--300℃ ℃-1 ( ×10-6 ) | 0.58 |
| Melting point: | 1732°C |
| Working temperature : | Under 1100°C |
| Max temperature can reach in a short time : | 1450°C |
| Acid tolerance: | 30 times than Ceramics , 150 times than Stainless steel |
| Visible light transmittance : | above 93% |
| UV spectral region transmittance: | 80% |
| Resistance value : | 10000 times than ordinary glass |
| Annealing point: | 1180°C |
| softening point: | 1630°C |
| Strain point: | 1100°C |
| Dimension Tolerance(mm) | |||||
| Designation | OD | WT | Max. Siding | Max. Ovality | Max. Bow |
| 1-3mm | ±0.05 | ±0.05 | 0.05 | 0.05 | 1‰ |
| 3-10mm | ±0.1 | ±0.1 | 0.1 | 0.15 | 2‰ |
| 10-20mm | ±0.2 | ±0.1 | 0.1 | 0.2 | 2‰ |
| 20-30mm | ±0.3 | ±0.15 | 0.15 | 0.2 | 2‰ |
| 30-40mm | ±0.4 | ±0.15 | 0.2 | 0.2 | 2‰ |
| 40-50mm | ±0.5 | ±0.2 | 0.25 | 0.25 | 2‰ |
| 50-65mm | ±0.6 | ±0.2 | 0.35 | 0.25 | 2.5‰ |
| 65-85mm | ±0.8 | ±0.3 | 0.45 | 0.3 | 2.5‰ |
| 85-100mm | ±1 | ±0.3 | 0.5 | 0.5 | 2.5‰ |
| 100-150mm | ±1.5 | ±0.4 | 0.5 | 0.8 | 3‰ |
| 150-200mm | ±2 | ±0.6 | 0.6 | 1 | 4‰ |
| 200-300mm | ±3 | ±0.8 | 0.7 | 2 | 5‰ |
| Spectral Transmission at 1.0mm Thickness | ||||||||
| nm | 220 | 255 | 280 | 315 | 350 | 380 | 590 | 780 |
| % | 89 | 91 | 93 | 93 | 93 | 93 | 93.2 | 93.4 |
| Chemical Composition, unit: PPM | ||||||||
| K+Na | Ca | Fe | Al | Mg | Ti | Ba | Li | Cu |
| <10 | <3.0 | <1.5 | <20 | <1.0 | <3.0 | <0.2 | <1.0 | <0.5 |
Packing method:
Each product with a bubble bag, and put into carton box, and then packed in wooden case.

Since 2005
Specialized in making further processed quartz products as below:
Larger diameter quartz tube
Capillary quartz tube
Milky quartz tube
Quartz plate(block/sheet/disc/..)
Quartz rod
IR quartz heating lamp
Electric-thermal film coated quartz heating tube
We can make various quartz products as your drawing.
Provide OEM and ODM.
Professional sales and service team
Q: Are you a factory or trading company?
A: We are a factory.
Q: Where is your factory located? How can I visit there?
A: Our factory is located in Lianyungang, China, about 2hours by air from Shanghai.
Q: What is the material of your products?
A: The material is quartz, SiO2 99.99%
Q: Does your company support "Trade Assurance"?
A: Yes, up to 11000USD currently.
What is the payment term?
We accept T/T, PayPal, Western Union, L/C.
Q: How about the delivery time?
10-15 working day after payment received.
Q: How to contact Quickly?
Skype/Facebook/LinkedIn:Linda.gao
Mobile/WhatsApp: 86-18352165759
Contact person: Miss Linda
Tel: 86 18352165759
Skype: linda.gao
QQ: 942282858
Whatsapp:86 18352165759
Send Inquiry to This Supplier
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