# Borosilicate Float Glass Sheet High Transmittance Glass Plate for Optical Lens

> Borosilicate Float Glass Sheet High Transmittance Glass Plate for Optical Lens — an optical lens: Borosilicate 3.3 (Borofloat type), low thermal expansion…

- Page: https://machiningglass.com/products/borosilicate-float-glass-sheet-high-transmittance-glass-plate-for-optical-lens/
- SKU: MG-1ED846
- Category: Optical Lenses, Prisms & Mirrors > Precision Optical Lenses
- Image: https://machiningglass.com/wp-content/uploads/2026/10/Borosilicate-Float-Glass-Sheet-High-Transmittance-Glass-Plate-for-Optical-Lens.webp
- Updated: 2026-10-24

Product type: Borosilicate Glass. Application: Door, Window, Heat Resistant Glass. Model: 80416. Function: Optical Function, Electromagnetic Function, Thermal Function, Biological and Chemical Function.

## Overview

The Borosilicate Float Glass Sheet High Transmittance Glass Plate for Optical Lens is supplied as an optical lens made from Borosilicate 3.3 (Borofloat type), low thermal expansion coefficient. Listed geometry: plate shape. Temperature Heat Resistant Glass. Typical applications: Home Appliance. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.

## Specifications

| Parameter | Value |
| --- | --- |
| Material | Borosilicate 3.3 (Borofloat type), low thermal expansion coefficient |
| Type | Borosilicate Glass |
| Shape | Plate |
| Application | Home Appliance |
| Usage | Door, Window, Heat Resistant Glass |
| Model NO. | 80416 |
| Structure | Float Glass |
| Moh's Hardness | 7 |
| Function | Optical Function, Electromagnetic Function, Thermal Function, Biological and Chemical Function |
| Transparency | Transparent |
| Processing Method | Float Processing |
| Preparation Process | Float Processing |
| Color | Tranparent |
| Materials | Borosilicate 3.3 Glass |
| Temperature | Heat Resistant Glass |
| Property | Low Thermal Expansion |
| Long time (>10h) | 500℃ |
| Stock size | 1150*850mm /1700*1150mm |
| Supplier | Jinan Everest Glass Company Limited. |

## Technical data

| Parameter | Value |
| --- | --- |
| Density (25℃) ρ | 2.23±0.02g/cm3 |
| Modulus of elasticity | 68kN/mm2 |

| Parameter | Value |
| --- | --- |
| Co-efficient of expansion(20-300℃) | 3.3±0.1×10-6 |
| Softening point | 820±10℃ |
| Strain point | 516±10℃ |
| Heat conductivity at 90℃ | 1.2W/mk |
| Caloricity | (20-100℃) 0.82KJ × (kg×K)-1 |
| Thermal shock resistanceStrengthening type | 180K300K |
| Identical temperature differenceStrengthening type | 100K300 K |
| Maximum working temperatureShort time (<10h):Long time (>10h): | 500℃450℃ |

| Parameter | Value |
| --- | --- |
| Water resistance | ISO719/DIN12111 HGB1ISO720 HGA1 |
| Acid resistance | ISO1776/DIN12116 1 |
| Alkali resistance | ISO695/DIN52322 A2 |

## What to specify when you request a quote

- **Material** — listed as “Borosilicate 3.3 (Borofloat type), low thermal expansion coefficient”; name the glass or crystal.
- **Geometry** — listed as “1150*850mm /1700*1150mm”; give diameter, focal length or radii, angles and tolerances.
- **Surface figure** — quote surface figure (λ) and scratch-dig.
- **Centring and edges** — state centration and edge chamfer.
- **Coating** — list the band and reflectance or transmission target.

## Engineering guides for this part

For material grades and coating options, see [BF33 Glass for Microfluidic Chips: Properties, Coatings & Selection Guide](https://machiningglass.com/materials/bf33-glass-for-microfluidic-chips-properties-coatings-selection-guide/). How parts like this are machined and finished is covered in [Flat Glass Polishing Process for Precision Substrates](https://machiningglass.com/capabilities/flat-glass-polishing-process-for-precision-substrates/). For an application example, read [Why Quartz Glass Components Excel in Coffee Heating Modules](https://machiningglass.com/applications/why-quartz-glass-components-excel-in-coffee-heating-modules/). Before sending a drawing, check [Fused Silica Refractive Index: Key to Optical Design Improvement](https://machiningglass.com/resources/fused-silica-refractive-index-key-to-optical-design-improvement/). A related standard product is [BF33 Microfluidic Glass Chip for Rapid Testing](https://machiningglass.com/products/bf33-microfluidic-glass-chip-for-rapid-testing/).

## FAQ

### What is the Borosilicate Float Glass Sheet High Transmittance Glass Plate for Optical Lens made of?

It is listed as Borosilicate 3.3 (Borofloat type), low thermal expansion coefficient. Other grades can be quoted if your application needs different transmission, thermal or chemical properties.

### Where is this optical lens used?

Listed applications: Home Appliance.

### What should I include in a quote request?

Include material, geometry, surface figure, centring and edges and coating, plus quantity and a drawing if the part is custom.

## Request a quote

Send drawings, tolerances and quantity: https://machiningglass.com/contact/?rfq_product_id=15439#mg-rfq

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Source: Custom Precision Glass Machining — https://machiningglass.com/