Borosilicate Glass Tubing CONTURAX® Pro

Alternative and trade names
CONTURAX® Pro
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Description

Acc. to ISO 3585. It exhibits high chemical resistance, high hydrolytic resistance and high resistance to thermal shock.

This material data has been provided by Schott Glass Tubing.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
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.

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Properties

General

PropertyValue

Density

2.23 g/cm³

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Mechanical

PropertyValue

Elastic modulus

63 GPa

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Poisson's ratio

0.2 [-]

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Thermal

PropertyTemperatureValueTesting StandardComment

Annealing temperature

560.0 °C

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ISO 7884-4

Viscosity 10¹³ dPa·s

Coefficient of thermal expansion

3.3e-06 1/K

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ISO 7991

mean value for 20-300 °C

Glass transition temperature

525 °C

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ISO 7884-8

Softening temperature

825.0 °C

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ISO 7884-3

Viscosity 10⁷·⁶ dPa·s

Specific electrical resistance temperature

250.0 °C

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For ρ=10⁸ Ω·cm

Thermal conductivity

90 °C

1.2 W/(m·K)

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Working temperature

1260.0 °C

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ISO 7884-2

Viscosity 10⁴ dPa·s

Electrical

PropertyTemperatureValueFrequency

Dielectric constant

4.6 [-]

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1MHz

Electrical resistivity

250 °C

1e+06 Ω·m

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350 °C

31623 Ω·m

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Loss tangent

0.0037 [-]

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1MHz

Optical

PropertyValueTesting StandardComment

Refractive index

1.5 [-]

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at λ=587.6 nm

Stress optical coefficient

4e-06 mm²/N

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DIN 52314

Chemical properties

Property

Other

0.01 %

max., Lead, Cadmium, Mercury and Hexavalent Chromium

Technological properties

Property
Application areas

Engineering (Glass apparatus, Instrument / Barometers / Aerometers / Sightglasses), Signal intensifier, Detector and (fibre-) optics (other Electrotechnology/Electronics), Home (Furniture, Architecture, Partition walls, Giftware and others), Lighting (Purification/germicidal UVC/UVB/UV-CCL lamps, Safety lighting) and Laboratory/Industrial Technology (Glassblown ware and technical articles), Sprinkler, Art installations

Corrosion properties

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