Soda Lime Silicate Glass AR-GLAS®

Alternative and trade names
AR-GLAS®
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Description

With a high alkali and alkaline earth oxide content and a general sealing glass with high chemical resistance.

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.

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Properties

General

PropertyTemperatureValue

Density

23.0 °C

2.5 g/cm³

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Mechanical

PropertyTemperatureValue

Elastic modulus

23.0 °C

73 GPa

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Poisson's ratio

23.0 °C

0.22 [-]

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Thermal

PropertyTemperatureValueComment

Annealing temperature

530 °C

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Viscosity 10¹³ dPa.s (ISO 7884-4)

Coefficient of thermal expansion

23.0 °C

9.1E-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

720 °C

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Viscosity 10⁷·⁶ dPa.s (ISO 7884-3)

Specific electrical resistance temperature

200 °C

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For ρ = 10⁸ Ω·cm

Thermal conductivity

90.0 °C

1.1 W/(m·K)

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Working temperature

1040 °C

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Viscosity 10⁴ dPa.s (ISO 7884-2)

Electrical

PropertyTemperatureValue

Dielectric constant, 1MHz

23.0 °C

7.2 [-]

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Electrical resistivity

250.0 °C

125892 Ω·m

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350.0 °C

5011 Ω·m

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Loss tangent, 1MHz

23.0 °C

7E-3 [-]

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Optical

PropertyValueComment

Refractive index

1.51 [-]

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at λ=587.6 nm

Stress optical coefficient

2.7E-6 mm²/N

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DIN 52314

Chemical properties

PropertyValueComment

Aluminium

4 %

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Al₂O₃

Barium

2 %

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BaO

Boron

1 %

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B₂O₃

Calcium

5 %

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CaO

Magnesium

3 %

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MgO

Other

0.01 %

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max., Lead, Cadmium, Mercury and Hexavalent Chromium

Potassium

3 %

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K₂O

Silicon

69 %

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SiO₂

Sodium

13 %

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Na₂O

Technological properties

Property
Application areas

Engineering (Heat exchanger, Glass apparatus, Instrument / Barometers / Aerometers / Sightglasses and Others), Renewable energy (Photovoltaics, Solar collectors, Receiver), Signal intensifier, Detector and (fibre-) optics (Transmitter and x-ray tubes, other Fibre optics, other Electrotechnology/Electronics), Home (Glass fibre applications, Aquarium heating tubes, Furniture, Sprinkler fuses, Food packaging /cosmetics, Architecture, Christmas Ornaments, Giftware and others), Lighting (Explosion roof lighting, Neon tubing, Lamp bulbs, Exhaust and plate tubing and others), Laboratory/Industrial Technology (Glassblown laboratory ware, Test tubes, Measuring cylinders, Pressed glass articles like balls and lenses, Medical technology like microlitetre syringe and pipettes, Thermometry), Pharmaceutical packaging (Vials, Tablet bottles), Glass straws.

Corrosion properties

Hydrolytic resistance Class HGB3 (ISO 719), Type III (Ph. Eur.), Type III (USP) - Acid resistance Class S1 (DIN 12116) - Alkali resistance Class A2 (ISO695), ASTM E 438 Type II