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Help Center254nm uv Filter Thin Quartz Sheet 75*75*28*2 Quartz Sheet
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254nm uv filter Thin quartz sheet 75*75*28*2 quartz sheet
Product Introductions
Size: 75*75*28*2mm
material:fused quartz/ fused silica
Appearance: clear, both sides polished,
ground edges /protective bevel
free of bubble or scratch or airline
Regular temperature: 1000°C
Resistant of strong chemistry like acid or alkali
Typical Application:
Optical Windows are applied to isolate different physical environments meanwhile
allowing light to drill through.
When selecting windows, you should consider these factors, materials, transmission,
scattering, wavefront distortion,parallelism and resistance to certain environment.
ZCQ offers a wide range of different materials and different degree of precision windows. Materials are UV Fused Silica, BK7, B270, CaF2, MgF2, etc.
Physical Parameter of ZCQ Quartz Products:
Parameter |
Standard |
Precision |
Ultra precision |
Dimensional Tolerance |
±0.1 |
±0.1 |
±0.1 |
Clear Aperture |
>80% to >90% |
>80% to >90% |
>80% to >90% |
Surface Quality |
60-40 |
40-20 |
20-10 to 10-5 |
Parallelism |
1 arc min |
30 arc seconds |
1 arc min |
Wavefront Distortion |
1λper 25mm |
λ/4 |
λ/10 |
Protective Bevel |
<0.25x45 deg |
<0.25x45 deg |
<0.25x45 deg |
Coating |
optional |
||
Technical Information :
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) ( from 20°C to 320°C) |
Thermal conductivity |
1.3 W/(mK) |
Heat capacity |
45.3 J/mol |
Softening point |
1730°C |
Annealing point |
1180°C |
Strain point |
1075°C |
Electrical resistivity |
>1018 Ωm |
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 |
Applications:
l Electro Optics
l Pressure Windows
l Inspection Windows
l Sensor and Measurement Systems
l Analytical Instruments
l Scientific Research
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 ,86-18701469926 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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