250ml quartz glass flask with round bottom
specifications:
1, silicon dioxide: larger than 99.95%
2, excellent physical and chemical performance
3, high thermo-stability and anticorrosive
4, transmission of visible light: larger than 90%
designs:
1, standard items
2, size and shape could make as request.
Any questions you might have please contact us at your free, it is our pleasure to be on service of you.
Our Service:
1, OEM service
2, produce per customers' request such as design & package & printing logo
3, special package for fragile products to make sure no broken in transportation
4, 8 years golden supplier.
5, 0% compain feedback.
6, 100% good reputation.
Thermal Properties
| CoefficientofExpansion(20°C~350°C) | 5.5*10-7/°C |
| Thermal Conductivity(W/m°C,20°C) | 1.4 |
| Specific Heat(J/kg,20°C) | 670 |
| Softening Point( viscosity) | 1730°C |
| Annealing Point | 1215°C |
| Deformation Temperature(long time heat retaining) | 1120°C |
Mechanical Properties
| Density g/cm3 | 2.2 |
| Compression Strength N/mm2 | 1100 |
| Bending Strength N/mm2 | 67 |
| Tension Strength N/mm2 | 48 |
| Micro Hardness N/mm2 | 8600~9800 |
| Moh's hardnessMoh's hardness | 5.5~6.5 |
Electrical Properties
| Electrical Resistivity(350°C,omh-cm) | 7*107 |
| Insulating Strength(20°C,KV/cm) | 250~400 |
| Dielectric Constant | 3.7 |
Company Information:
HIGHBORN is one of the leading high quality quartz glass and precise ceramics manufacturer and supplier in China.
HIGHBORN has always been a defining force in the sale and fabrication of quartz glass within the semi-conductor, chemical, solar Energy and precise ceramics within semi-conductor , solar energy, textile, electronic, and laser industries.
Not only have we mastered the fabrication technology, our strength has always been based around listening to and understanding our customer's requirements and expectations.
Continuous improvement in all areas of our business is key to our growth. What is equally important to us is maintaining in business, our inherent family values of trust, faimess and respect to our employees, suppliers and customers.
FAQ
1. Q: How can I get some samples?
A: If have sample in stock, we can offer it free based on the freight charge collected. If it is need to be customized, we will charge some fees without profit.
2. Q:How can I trust you?
A:We have more than 10 years experience to own good reputation.
3. Q: Terms of payment?
L/C, D/A, D/P,T/T, Western Union, Money Gram are all ok, but maybe some of these are limited for special countries.
HIGHBORN is one of the leading high quality quartz glass and precise ceramics manufacturer and supplier in China.
HIGHBORN has always been a defining force in the sale and fabrication of quartz glass within the semi-conductor, chemical, solar Energy and precise ceramics within semi-conductor, solar energy, textile, electronic, and laser industries.
Not only have we mastered the fabrication technology, our strength has always been based around listening to and understanding our customer's requirements and expectations.
Continuous improvement in all areas of our business is key to our grouth. What is equally important to us is maintaining in business, our inherent family values of trust, faimess and respect to our employees, suppliers and customers.
