Product type: Flat Lens. Application: Lighting, Medical, Optical, Photography. Model: 10mm.
Overview
Borosilicate Sight Glass, Round Sheet, Customized Disk, Borosilciate Float is a sight / viewing glass made from Borosilicate Glass. Listed geometry: thickness 1mm – 50mm, single-lens shape. Optical / electrical data: transmittance 90%-95%, sheet resistance Acid-Proof, Alkali-Proof, Water-Proof, Corrosion-P. Coating: UV; flatness Ultra-Flat, No Ripple, No Distortion; temperature Maximum Long-Term Working Temperature: 450℃. Listed for Industrial Sight Glass and Optical Lens applications. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Borosilicate Glass |
|---|---|
| Type | Flat Lens |
| Shape | Single-lens |
| Thickness | 1mm – 50mm |
| Transmittance | 90%-95% |
| Coating | UV |
| Flatness | Ultra-Flat, No Ripple, No Distortion |
| Application | Industrial Sight Glass,Optical Lens |
| Usage | Lighting, Medical, Optical, Photography |
| Model NO. | 10mm |
| Lenses Color | Clear |
| Item | Ultra Clear Borosilicate Flat Glass |
| Color Kind | Super Clear / Transparent |
| Craft | Float Tin Bath Molding, Flame Polished |
| Grade | Optical Grade / Laboratory Grade / Industrial Grad |
| Process | Cutting, Polishing, Grinding, Coating, Drilling, |
| Hardness | High Hardness, Scratch Resistant |
| Chemical Resistance | Acid-Proof, Alkali-Proof, Water-Proof, Corrosion-P |
| Oxidation Resistance | Long-Term Anti-Oxidation, Durable Service Life |
| Edge Process | Smooth Burr-Free Polished Edge |
| Maximum Long-Term Working Temperature | Maximum Long-Term Working Temperature: 450℃ |
| Thermal Sthock Resistance | Excellent, Resist Sudden Hot & Cold Change |
| Visible Light Transmittance | Visible Light Transmittance: ≥91% |
| Premium floatprocessed surface | ultraflat, low waviness, minimal surface defects |
| Customizable parameters | sheet thickness, length, width |
| Edge finish options | ascut raw edge, ground edge, polished edge |
| tant branch | glass lens and water meter cover, |
| Supplier | Jinan Honhai Glass Company Limited |
Technical data
| Item | Technical Data |
|---|---|
| Product Name | 3.3 Borosilicate Float Glass Sheet |
| Thickness Range | 2mm – 20mm (full size in stock) |
| Thermal Expansion Coefficient | 3.3 × 10/K (20ºC-300ºC) |
| Max Working Temperature | 450ºC (long-term use) |
| Light Transmittance | ≥91% (visible light) |
| Density | 2.23±0.02 g/cm³ |
| Standard Sheet Size | 1150×850mm, 1700×1150mm, 1600×1200mm |
| Surface Quality | No bubble, no scratch, no ripple, flame polished |
| Processing Service | Cutting, drilling, grinding, polishing, coating, custom shape |
| Mechanical Property | |
|---|---|
| Density(g/cm3 )(at 25ºC) | 2.23+/-0.02 |
| Thickness | 2.0–15.5mm |
| Standard size | 1150*850mm 1700*1150mm 1200*800mm1600*1200mm |
| Thermal Property | |
| Coefficient of expansion (0–300ºC) | 3.3+/-0.1*10-6 |
| Softening point | 820+/-10ºC |
| Heat resistant(K) | ≥125 |
| Maximum working temperatureShort time(<10h)Long time(>10h) | 500ºC400ºC |
| Identical temperature differenceStrengthening type(K) | 100 |
| Component | |
| SiO2 (%) | 79.97 |
| Al2O3 (%) | 2.27 |
| Na2O (%) | 4.21 |
| B2O3 (%) | 13.12 |
What to specify when you request a quote
- Glass type and thickness — listed as “Borosilicate Glass”; name the glass and thickness.
- Temperature and pressure — listed as “Maximum Long-Term Working Temperature: 450℃”; give working temperature, thermal shock and any pressure rating.
- Strengthening and safety — state tempering, lamination or the safety standard.
- Outline and edges — listed as “Single-lens”; send a drawing with outline, holes and edge finish.
Engineering guides for this part
For material grades and coating options, see Custom Borosilicate Glass Sheets Cut to Size: Precision and Performance. How parts like this are machined and finished is covered in How Borosilicate Glass Is Sandblasted for Matte Surface Processing. For an application example, read Quartz Glass Windows for High-Temperature Appliance Modules. Before sending a drawing, check Quartz Glass Manufacturing: Controlling Thermal Conductivity in Fused Silica. A related standard product is AR Anti-Reflection Optical Window.
