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Glass
Silicate Glass
Borosilicate
Borosilicate Glass DURAN®

Borosilicate Glass DURAN®

Alternative and trade names
DURAN®

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Description

Borosilicate glass 3.3 acc. to ISO 3585. It exhibits high chemical resistance, high hydrolytic resistance, high resistance to thermal shock, high temperature resistance, electrically highly insulating and high transmittance. DURAN® is a registered trademark of DWK Life Sciences GmbH.

Ashby charts

See where Borosilicate Glass DURAN® falls on the material property chart for Density against Elastic modulus in your materials selection and design process. Our Ashby charts are interactive with more technical data upon clicking. Sign up to get access to this premium feature for free.

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Properties

General

Density

2.23 g/cm³ at 20 °C

Mechanical

Elastic modulus

63 GPa at 20 °C

Poisson's ratio

0.2 [-] at 20 °C

Thermal

Annealing temperature

T_anneal

560 °C

Viscosity 10¹³ dPa.s (ISO 7884-4)

Coefficient of thermal expansion

3.3E-6 1/K at 20 °C

mean value for 20-300 °C - ISO 7991

Glass transition temperature

T_g

525 °C

ISO 7884-8

Softening temperature

T_softening

825 °C

Viscosity 10⁷·⁶ dPa.s (ISO 7884-3)

Specific electrical resistance temperature

T_k

250 °C

For ρ = 10⁸ Ω·cm

Thermal conductivity

1.2 W/(m·K) at 90 °C

Working temperature

T_working

1260 °C

Viscosity 10⁴ dPa.s (ISO 7884-2)

Electrical

Dielectric constant, 1MHz

ε_r,1MHz

4.6 [-] at 20 °C

Electrical resistivity

ρ_el

1000000 Ω·m at 250 °C

Hide chart

Loss tangent, 1MHz

tanδ_1,MHz

3.7E-3 [-] at 20 °C

Optical

Refractive index

n_d

1.47 [-]

at λ=587.6 nm

Stress optical coefficient

4E-6 mm²/N

DIN 52314

Chemical properties

Element

Weight %

Comment

Other

0.01 %

max., Lead, Cadmium, Mercury and Hexavalent Chromium

Technological properties

Application areas

Engineering (Heat exchanger, Desulphorization plants, Ozone generators, Photobioreactors, Instruments / Barometers / Aerometers / Sightglasses), Electronic components (Fuses), Signal intensifier, detector and (fibre-) optics (Transmitter and x-ray tubes, Photomultipliers), Sensors, Home (Aquarium heating tubes, Furniture, Sprinkler fuses, Food packaging/cosmetics, Architecture, Galileo thermometers, Outdoor patio heater, Christmas ornameters, Handle for cups, Partition walls and Giftware), Lighting (Explosion proof lighting, Neon tubing, Flah lamps, Lamp bulbs, Exhaust and plate tubing, Safety lighting, Autonomous street lighting), Laboratory/Industrial Technology (Glassblown laboratory ware, Test tubes, NMR tubes, Measuring cylinders, Microlitetre, Syringe, Pipettes, Thermometry, Glass Straws, Pressed glass articles like balls and lenses, Technical articles), General-purpose glass for apparatus for the chemical industry, Sight- and Gauge glasses, pipelines and lab glassware, Sprinkler, Art installations, LiDAR & Radar, Pneumatic Conveying Systems, Photobioreactors, Water treatment,

Corrosion properties

Hydrolytic resistance Class HGB1 (ISO 719) - Acid resistance Class S1 (DIN 12116) - Alkali resistance Class A2 (ISO695)

Do you need more data regarding this material?

This material data has been provided by Schott Glass Tubing.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.