N-BK7 glass blanks

Product Description Product Application schott N-BK7 glass blanks is used for windows, lenses, and prism substrate.

SPECIFICATIONS FOR Schott N-BK7 glass blanks
SiO2	69.13%	strain and temperature	70℃
Index	1.51630	Transmistance	90%
Density	2.49	Soft temperature	719°
Coefficient of Thermal expansion	7.1X10-6/K	Thermal Conductivity	1.1Wm-1K-1
Density (20℃)	2.23g/cm3	Specific heat	879Jg-1K-1

Main Features 1) High Transmistance
2) No Bubble and No stripe
3) High Temperature Resistance

 
Certifications Detailed Images Customize Made Size Schott N-BK7 glass blanks Name: Schott N-BK7 Brand: Subei
Original: China All size can be Customize Made according to drawings
Schott N-BK7 glass blanks Spectral Size: D60*3mm
Transmistance: ＞90%
AR Coated both sides:＞99.5%
Transmistance can be imporved by ar coated one side or both sides
Schott N-BK7 glass blanks Name: Schott N-BK7 glass blanks
Size: D200*20mm
Original: China
By hardened the glass,the heat resistance can be 550℃.
Schott N-BK7 glass blanks Name: Schott N-BK7 glass blanks
Brand: Subei
Original: China
The surface of Schott N-BK7 glass can be forsted or polished ,all are available by our customers
Our Service Pre-Sales Service * Inquiry and consulting support.  * Sample testing support.  * View our Factory. After-Sales Service
* Training how to instal the machine, training how to use the machine.  * Quality guarantee forever. Packing & Delivery

Packaging
Size	Customize Made Size
Weight	upon sizes
Packaging Details	The normal package is wooden box(Size: L*W*H). If export to european countries,the wooden box will be fumigated.If container is too tigher,we will use pe film for packing or pack it according to customers special request.

Packaging
Size	30 (L) * 30 (W) * 20(D)
Weight	upon the QTY and Sizes
Packaging Details	The normal package is carton box(Size: L*W*H). If export to european countries,the wooden box will be fumigated.If container is too tigher,we will use pe film for packing or pack it according to customers special request.

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