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High-temperature Quartz Tube for furnace
Detailed Product Description
High purity quartz 99.99%.
Fire Molding Processing
Competitive Price
Supply Custom made specification.
ZCQ supply our clients with various Laboratory Quartzware:
Quartz Beaker (Low & Tall Form) Cell, Cylinder
Test Tube (With or With No Lid) Flange Pipe (Flange Ring)
Crucible (Low & Tall Form) Evaporating Dish
Carrier/ Boat (Flat or Round Bottom) Distilling Flask
Ball Joint,Taper & Socket Joint Kjeldahl Flask
Anti-Heat Jacket Volumetric Flask
Round Dish Boiling Flask
Cuvette Spiratron (Tubes in Coil) Stopcocks
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
ZCQ offers:
1.High Purity Material and High Precision Manufacturing
2. Custom made specification and great Catagory
3.Competitive Price and No minimum order restriction
4. Fast Delivery and complete after-sale services
Use Notices
1. Be careful and gentle when taking and placing the quartz glass products .
2. Do not operate in temperature beyond quartz maximum working temperature
for long time.
3 Clean the quartz products before high temperature environment operation .
Firstly soak the products in 10% hydrofluoric acid, then wash it with high
purity water or alcohol .
4 It is wise to extend the lifespan and thermal resistance of quartz products
via continuous use within high temperature environment. Otherwise, interval
use shall shorten products lifespan.
5 . Thermal stability of quartz products could vary from product to product
due to different shapes and residual strain
6 Try to avoid touch with alkaline substances (such as water glass, asbestos,
potassium and sodium compounds, etc.)
ZCQ is a full value-added distributor in custom quartz products manufacturing. We believe customers should be regarded as root of the trees if a company desires flourishment and fruits. Our mission is to provide a comprehensive suite of services related to meet your needs. We go out of our way to ensure that you receive the service and personal attention you deserve.
ISO 9001and ROHS Certified –We are ISO 9001 and RoHS Certified, and will provide any certifications you need about the quality of our products. Our company founding and manufacturing history can be dated back to 1998.
Quotes in 24 Hours or Less– Each Enquiry is replied within 24 hours. Individual sales representative is also pleased to answer your phone call within or out of office time. Please send email us in case international phone call cant be reached.
Low Order Minimum – Just $35 for you to order any group of quartz products in or out of stock.
Custom and prototyping are welcome–We welcome custom quartz products to meet your exact specifications. With a team of senior quartz experts, we can also offer advises on product design for free.
Prompt Lead TimesFor products in stock, product will be delivered in 1 or 2 days.For custom products, it takes 5-10 days. No matter what type, we try to understand and support customer’s time requirement.
On-Time Delivery In 5-7 or 10-20 days, Product parcel shall arrive at assigned destinations.
Shipping methods via China post(15-20 days) Epacket (10-15days) EMS(7-10days) Fedex(5-7days) DHL(5-7days)
Free Samples We are pleased to send free samples to customers whoever interested in business and cooperation with us. Shipping charge shall be paid by customers from the other part of the globe.
Company tour invitation 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.
With over 70 personnel in sales and support alone, ZCQ is ready to handle even the most difficult request. We hope you will have the most content quartz products buying experience possible and can focus on your core strengths.
Questions and help
If you have any questions concerning products, please call us at 86-10-89770383 ,86-13241781622 or email us .
Order Acceptance and Pricing
ZCQ will provide a Pro Forma Invoice as confirmation on customers’ order.
Production will be arranged in line with technical specification within the invoice once payment received .
Payment Terms
Advanced T/T Credit Card Payments: ZCQ accepts Visa, MasterCard, and American Express.
We also accepts paypal payment .
Shipping & Handling
Freight Policy: If you have a freight collect account with any shipping carrier, please tell us in advance.
Or we will advise you a most economic method of shipment before checkout.
Return/Guarantee Policy
A Return Merchandise is to be returned on the original shipping form. Returns may be subject to freight. Credit will not be issued until the return has been received and inspected by ZCQ. Please send us an email and include your order number.
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