250ml Quartz Glass Conical Flask

250ml quartz glass conical flask

quartz flask/ quartz glass flask / quartz glass conical flask 

Specifications
specialist of quartz furtherprocessing, pls tell me your size or drawing, I will give you the lowest price bases on best qualit
Material 
Quartz glass
Purity :
More than 99.99%
Characteristic :
1.high quality competitive price and elegant appearance
2.high temperature resistence and corrosion resisting
3.no bubble and no processing trade
4.long time to use
Efforts 
1,   tolerance control (min:±0.1)
2,  accurate dimension according to customs' request
3,  complete after-service systerm
Specification
OD:1.3-350mm  Thickness:0.6-10mm   length:5-3.000mm
Further-processing:
  Ends closing, sand blasting, polishing, bending, cutting,  pinching, burning mouth and so on
  The special one, pls kindly send me the drwaing
Application:
 Widely used in the filed of semiconductor, metallurgy, chemical industry, electric light source, photo-communication, medical equipment, scientific instruments and so on.
we really appreciate your visiting and assisting,pls kindly tell me your sizes and technology.

Properties
Density	Elastic modulus	Tensile strength	Hardness
2.2g/cm3	700*103kg/cm3	.-500kg/cm3	5.5-6.5

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, customized per drawings such as square, round, triangle ,flower designs.
3, 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.