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High Quality Borosilicate Glass for Telescope Mirror Blank Clear Round Glass Discs
High Quality Borosilicate Glass for Telescope Mirror Blank Clear Round Glass Discs
High Quality Borosilicate Glass for Telescope Mirror Blank Clear Round Glass Discs
High Quality Borosilicate Glass for Telescope Mirror Blank Clear Round Glass Discs
High Quality Borosilicate Glass for Telescope Mirror Blank Clear Round Glass Discs
High Quality Borosilicate Glass for Telescope Mirror Blank Clear Round Glass Discs
High Quality Borosilicate Glass for Telescope Mirror Blank Clear Round Glass Discs
High Quality Borosilicate Glass for Telescope Mirror Blank Clear Round Glass Discs

High Quality Borosilicate Glass for Telescope Mirror Blank Clear Round Glass Discs

FOB Reference Price: Get Latest Price
≥1 Pieces
US $4.5
≥500 Pieces
US $3.5
≥1000 Pieces
US $2.5
≥5000 Pieces
US $1.3
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Customized Request
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Quick Details

Place of Origin:
Shandong, China
Brand Name:
VATTI GLASS
Model Number:
Borosilicate Glass
Shape:
customizable
Size:
Custom Sizes
Edge:
Fine Polished Edge
Delivery Time:
Within 15-20 days after receiving the deposit
Packing:
Wooden Cases
Installation:
built-in
Surface:
Polished,non-polished
Corner:
Right angle,rounded angle
Printing:
Customizable
Feature:
high pressure resistant

Quick Details

Application:
Workshop
Usage:
Industrial
Thickness:
customizable
Place of Origin:
Shandong, China
Brand Name:
VATTI GLASS
Model Number:
Borosilicate Glass
Shape:
customizable
Size:
Custom Sizes
Edge:
Fine Polished Edge
Delivery Time:
Within 15-20 days after receiving the deposit
Packing:
Wooden Cases
Installation:
built-in
Surface:
Polished,non-polished
Corner:
Right angle,rounded angle
Printing:
Customizable
Feature:
high pressure resistant
Warm reminder
Please contact us before placing an order. The product price is for reference only and does not represent the specific selling price. Because there are too many product sizes, parameters need to be provided for processing. Outer diameter, thickness, length and quantity. For the length, width, thickness and quantity of square pieces, it is best to provide the drawing mailbox so that we can make an accurate quotation
Product Description
Borosilicate glass is one of transparent colorless glasses, the wavelength is between 350nm to 2500nm, and the transimitance is more than 90%.
It's alkalifast, and the high temperature is up to 400°C,If course handling, the high temperature resiatant can reach 550°C.
Features of borosilicate furnace viewing glass as following:
1. Raw material: Borosilicate glass, Pyrex, Optical glass.
2. Processing: by Molding, Grinding, Polishing.
3. Surface quality: optical surface quality and well controlled tolerance
4. Inside quality: clear and transparent, no mold marks, no inside bubble and dirts.
5. Great heat resistance performance,stable chemical property.
6. Working field :widely used in high-temperature observation windows, lighting (high-power lighting panel), appliances, laboratory containers, solar, lighting and other fields.
More details, please feel free to contact me.
Specification
High Borosilicate Performance Report
SiO2
B2O3
Al2O3
Na2O+K2O
80±0.5%
13±0.2%
2.4±0.2%
4.3±0.2%
Characteristics
Coefficient of mean linear themal
expansion(20°C/300°C)
3.3±0.1(10–6K–1)
Softening point
820±10°C
Melting point
1260±20°C
Transformation temperature
525±15°C
Hydrolytic resistance at 98°C
ISO719-HGB1
Hydrolytic resistance at 121°C
ISO720-HGA1
Acid resistance class
ISO1776-1
Alkali resistance class
ISO695-A2
Application
Recommend Products
1. 16 years experiences on glass manufacturing and exporting.
2. Top quality glass with CE, CCC certificate, exporting to more than 80 countries in the world.
3. Unique designed strong wooden cases, solving the problems of breakage.
4. Dockside warehouses beside three of China main container seaports, ensuring convenient loading and rapid delivery.
5. Full range of flat glass supply, offering one-stop purchase.
6. Professional sales team, offering personalized and dedicated services.
Packing & Delivery
Shipping:

1.30% deposit and 70% before shipping, FOB Qingdao Port.

2.Sample Order and small order will ship by DHL, TNT,FEDEX,EMS, and UPS. It will take 7-10 working days since payment arrived

Packaging:

1,Glass film processing;External wooden packaging, Glass are to be paper or expandable polyethylene pearl Cotton (EPE) packed in
strong seaworthy wooden crates.

2.Wooden crates worthy for ocean and land carriage.

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