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Borosilicate Glass BORO-8330™

Alternative and trade names
BORO-8330™
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Description

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

Related Standards

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.

Ashby charts

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Properties

General

PropertyTemperatureValue

Density

23.0 °C

2.23 g/cm³

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Mechanical

PropertyTemperatureValue

Elastic modulus

23.0 °C

63 GPa

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Poisson's ratio

23.0 °C

0.2 [-]

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Thermal

PropertyTemperatureValueComment

Annealing temperature

560 °C

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Viscosity 10¹³ dPa.s (ISO 7884-4)

Coefficient of thermal expansion

23.0 °C

3.3E-6 1/K

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mean value for 20-300 °C - ISO 7991

Glass transition temperature

525 °C

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ISO 7884-8

Softening temperature

825 °C

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Viscosity 10⁷·⁶ dPa.s (ISO 7884-3)

Specific electrical resistance temperature

250 °C

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For ρ = 10⁸ Ω·cm

Thermal conductivity

90.0 °C

1.2 W/(m·K)

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Working temperature

1260 °C

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Viscosity 10⁴ dPa.s (ISO 7884-2)

Electrical

PropertyTemperatureValue

Dielectric constant, 1MHz

23.0 °C

4.6 [-]

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Electrical resistivity

23.0 °C

31 Ω·m

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250.0 °C

1000000 Ω·m

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350.0 °C

622.78 Ω·m

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Loss tangent, 1MHz

23.0 °C

3.7E-3 [-]

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Optical

PropertyValueComment

Refractive index

1.47 [-]

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at λ=587.6 nm

Stress optical coefficient

4E-6 mm²/N

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DIN 52314

Chemical properties

PropertyValueComment

Aluminium

2 %

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Al₂O₃

Boron

13 %

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B₂O₃

Other

0.01 %

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max., Lead, Cadmium, Mercury and Hexavalent Chromium

Potassium

0.5 %

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K₂O

Silicon

81 %

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SiO₂

Sodium

3.5 %

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Na₂O

Technological properties

Property
Application areas

Pharmaceutical Packaging (Vials, Syringes, Cartridges)

Corrosion properties

Hydrolytic resistance Class HGB1 (ISO 719) Type I (Ph. Eur.) Type I (USP), Fulfilled (JP)- Acid resistance Class S1 (DIN 12116) - Alkali resistance Class A2 (ISO695), ASTM E 438 Type I Class A