Pyrex flat bottom glass test tube
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‰ |
20-30 | ±0.2 | ±0.15 | 0.15 | 0.2 | 2‰ |
30-40 | ±0.4 | ±0.15 | 0.2 | 0.2 | 2‰ |
40-50 | ±0.5 | ±0.2 | 0.25 | 0.25 | 2‰ |
50-65 | ±0.6 | ±0.2 | 0.35 | 0.25 | 2.5‰ |
65-85 | ±0.8 | ±0.3 | 0.45 | 0.3 | 2.5‰ |
85-100 | ±1 | ±0.3 | 0.5 | 0.5 | 2.5‰ |
100-150 | ±1.5 | ±0.4 | 0.5 | 0.8 | 3‰ |
150-200 | ±2 | ±0.6 | 0.6 | 1 | 4‰ |
200-300 | ±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 | <1.5 | <20 | <1.0 | <3.0 | <0.2 | <1.0 | <0.5 |
Application of standard clear quartz tube: halogen lamp, mercury lamp, single end lamp,automobile lamp,stage lamp, The thermoelectric boiler, The photocopier lamp, Water treatment lamp casing,quartz ware and pipe.
Application of Ultraviolet quartz tube : Single-ended metal halide lamp,automobile metal halide lamp,G12 metal halide lamp, anti-explosion metal halide lamp, High power stage light and so on.
Application of free ozone quartz tube : Kill germs free ozone light,the material of hospital ,family,and public place Ultraviolet kill germs,and water treatment.
Application of quartz rod : Linear light source products, light guide stick, light pipe, Fiber Lighting, Quartz fiber manufacturing,semiconductor silicon wafer, hollow half round.
Application of film coated quartz heater tube: Instant Hot water heater, Alkaline water purifier, Electrothermal heater, Oven heating, Aquarium heater,Screen Printing, Drying, Sealing, Food Warming, Plastic Forming, Laminating.
General process of quartz tube :End closing-Cutting-Fire polished-Cleaning-Dring-Annealing-Cooling down-Inspecting-Packing
Welcome to visit our homepage: http://liaisonquartz.en.china.cn/contactinfo.html
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.
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.