Lead Glass Tubing and Rod SCHOTT 8652

Alternative and trade names
SCHOTT 8652
Want to keep this datasheet? Save it now in your required format

Description

Tungsten sealing glass. Low melting passivation glass wit high hydrolytic resistance.

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.

Ashby charts

See where falls on the material property chart for against 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.

Properties

General

PropertyValue

Density

3.18 g/cm³

Show Supplier Material materials with Density of 3.18 g/cm³

Mechanical

PropertyValue

Elastic modulus

58 GPa

Show Supplier Material materials with Elastic modulus of 58 GPa

Poisson's ratio

0.25 [-]

Show Supplier Material materials with Poisson's ratio of 0.25 [-]

Thermal

PropertyTemperatureValueTesting StandardComment

Annealing temperature

490.0 °C

Show Supplier Material materials with Annealing temperature of 490.0 °C

ISO 7884-4

Viscosity 10¹³ dPa·s

Coefficient of thermal expansion

4.5e-06 1/K

Show Supplier Material materials with Coefficient of thermal expansion of 4.5e-06 1/K

ISO 7991

mean value for 20-300 °C

Glass transition temperature

495 °C

Show Supplier Material materials with Glass transition temperature of 495 °C

ISO 7884-8

Softening temperature

638.0 °C

Show Supplier Material materials with Softening temperature of 638.0 °C

ISO 7884-3

Viscosity 10⁷·⁶ dPa·s

Thermal conductivity

90 °C

0.9 W/(m·K)

Show Supplier Material materials with Thermal conductivity of 0.9 W/(m·K)

Working temperature

900.0 °C

Show Supplier Material materials with Working temperature of 900.0 °C

ISO 7884-2

Viscosity 10⁴ dPa·s

Electrical

PropertyValueFrequency

Dielectric constant

6.9 [-]

Show Supplier Material materials with Dielectric constant of 6.9 [-]

1MHz

Loss tangent

0.0035 [-]

Show Supplier Material materials with Loss tangent of 0.0035 [-]

1MHz

Optical

PropertyValueTesting StandardComment

Refractive index

1.6 [-]

Show Supplier Material materials with Refractive index of 1.6 [-]

at λ=587.6 nm

Stress optical coefficient

3.4e-06 mm²/N

Show Supplier Material materials with Stress optical coefficient of 3.4e-06 mm²/N

DIN 52314

Technological properties

Property
Application areas

For power and pin diodes as well as microdiodes, Signal intensifier, detector (other Electrotechnology/Electronics), Sensors

Corrosion properties

Hydrolytic resistance Class HGB1 (ISO 719) - Acid resistance Class S4 (DIN 12116) - Alkali resistance Class A3 (ISO695)