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Help CenterHigh Precision Quartz Glass Helix Tubes For Sale
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High Precision Quartz Glass Helix Tubes For Sale
Detailed Product Description
Specification
Outer Diameters |
0.5mm to 8mm |
Inner Diameters |
0.126mm~Specified D |
Lengths |
1mm to specified L |
OD & ID Tolerance |
To 1.5%--3%mm |
Some Typical Characteristics of Quartz:
Very Low Coefficient of Thermal Expansion
Resistance to High Temperature
High Chemical Purity
High Corrosion Resistance
Extensive Optical Transmission from Ultra-Violet to Infra-Red
Excellent Electrical Insulation Qualities
Techincal Information of Transparent Quartz Materials:
Density: 2.203 g/cm3
Hardness: 7 (Modified Scale); 5.36.5 (Mohs Scale)
Tensile strength: 48.3 MPa
Compressive strength: >1.1 GPa
Bulk modulus: ~37 GPa
Rigidity modulus: 31 GPa
Young's modulus: 71.7 GPa
Poisson's ratio: 0.16
Coefficient of thermal expansion: 5.5×10-7 cm/(cmK) (average from 20°C to 320°C)
Thermal conductivity: 1.3 W/(mK)
Heat capacity: 45.3 J/mol
Softening point: c. 1730°C
Annealing point: c. 1180°C
Strain point: 1075°C
Electrical resistivity: >1018 Ω×m
Dielectric constant: 3.75 at 20°C 1 MHz
Dielectric loss factor: less than 0.0004 at 20°C 1 MHz
Index of refraction at 587.6 nm (nd): 1.4585
Shipping Methods:
l EMS Express
l International Air Mail
l DHL Express
l TNT Express
l FedEx Express
Company Profile
l Private owned Ltd company established in 1998 manufacturing quartz and optical glass products.
l ISO 9001 Certified in 2008.
l Qualified personnel Total Stuff: 73
l Total Area: 22,000sqm (Workshop: 5,000sqm)
l Annual Turnover for Year 2012(Including Estimated the Fourth Season) USD 4,700,000
l Target Annual Turnover for Year 2013 USD 6,300,000
Export Areas:
package: protection paper, green air bag, air film, carton ,
safe and ecnomic even for freight collect as well.
Shipping methods and charges:
China post(15-25days)
Epacket to USA (10-15days)
EMS(7-10days)
Fedex(5-7days)
DHL(5-7days)
Actual shipping charge will be calculated upon product weight.
1.Based in Beijing, heart of China, ZCQ is a technology and quality oriented manufaturer with 20 years history.
2.With senior engineer supervise, we are glad to advise customers on pressure, temperature etc application and engineering questions.
3.ZCQ accepts second production in case some products don’t meet requirements.
4.1 hour from international meeting center of Beijing, ZCQ invites guests to visit our company after long day meeting and get relaxed in nature. Our company is also sitted in arms of mountains and river.
Send Inquiry to This Supplier
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