Manufacturers produce borosilicate 3.3 heat-resistant glass（Optical lens）

Product Introduction

Borosilicate glass 3.3 is a type of glass that has become increasingly popular in recent years, due to its excellent thermal and chemical resistance properties. It is composed mainly of silica, boric oxide, aluminum oxide, sodium oxide, and other oxides. This specific combination makes it ideal for use in optical lenses as well as various types of laboratory equipment. Borosilicate 3.3 glass can be used as optical lens for cameras and other equipment.At the same time, its wear resistance is also very prominent.

Borosilicate Glass Optical Lenses are used for a variety of applications such as microscopy and telescopes. The combination of the borosilicate glass material with the precision-made optics allows for superior performance when compared to standard plastic or acrylic lenses. Additionally, Borosilicate Glass Optical Lenses provide increased clarity and color fidelity which helps reduce eye fatigue during extended viewing sessions. 

The composition of Borosilicate Glass 3.3 makes it particularly suitable for high temperature use without compromising on strength or durability; this property can be beneficial when creating optical lenses which require higher temperatures during production processes than what traditional glasses can handle without cracking or melting under pressure. 

Technical Data

Thickness Range:2mm-20mm

Color: ultra-clear, transmittance 92%

Thermal properties

Coefficient of Linear Thermal Expansion (C.T.E) α (20°C~300°C): 3.3×10-6 K-1

Specific heat capacity cƤ (20-100°C) :0.83kJ/(kg·K)

Thermal conductivity λ (90°C):1.2 W/(M·K)

Heat shock temperature:240°C

Annealing Point:560°C

Strain Point: 510°C

Optical data

Optical index of refraction:1.48

Mechanical properties

Density ρ (25°C) :2.23ɡ/cm3

Young's Modulus E (according to DIN 13316):64 kN/mm2

Poisson's Ratio μ (according to DIN 13316):0.2

Advantages

High borosilicate 3.3 glass is high-temperature resistant glass, heat-resistant glass and temperature difference resistant glass. The linear expansion coefficient is 3.3 ± 0.1 × 10-6 / K, is a glass with sodium oxide (Na2O), boron oxide (b2o2) and silicon dioxide (SiO2) as the basic components. The content of boron and silicon in the glass composition is relatively high, namely, boron: 12.5 ~ 13.5%, silicon: 78 ~ 80%.

The expansion coefficient will affect the stability of glass. The expansion coefficient of borosilicate 3.3 heat-resistant glass is 0.4 times that of ordinary glass. Therefore, at high temperature, borosilicate 3.3 heat-resistant glass still maintains excellent stability and will not crack or break.

Packaging Photos of Borosilicate Glass 3.3

FAQ

Q:How to get a quotation?

A: we need to get specific details, such as size, color, thickness, quantity, edge,etc.

Q: Can you do the production as customized?

A: Yes, we have a professional technique team, we could produce the glass depends on your requirements.

Q: What the your glass package ?  Are they safe ?

A: Wooden Crates Worthy for Ocean and Land Carriage .The crates will be very strong and every loading worker has 12years packed,

loading and fixation crates with container experience.  And we send the loading pictures for you after we loading .

Q:.  What is your minimum order quantity?

A:Our MOQ is one full 20 feet container.

Products of different sizes and specifications could be mixed in one container.

Q: Can you supply a free samples ?

A: yes, if you want us to provide big size sample according to your requirements, you should pay the cost of production.