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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.

Ashby charts

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Properties

General

Density

ρ

2.5 g/cm³ at 20 °C

Mechanical

Elastic modulus

E

73 GPa at 20 °C

Poisson's ratio

ν

0.22 [-] at 20 °C

Thermal

Annealing temperature

Tanneal

530 °C

Viscosity 10¹³ dPa.s (ISO 7884-4)

Coefficient of thermal expansion

α

9.1E-6 1/K at 20 °C

mean value for 20-300 °C - ISO 7991

Glass transition temperature

Tg

525 °C

ISO 7884-8

Softening temperature

Tsoftening

720 °C

Viscosity 10⁷·⁶ dPa.s (ISO 7884-3)

Specific electrical resistance temperature

Tk

200 °C

For ρ = 10⁸ Ω·cm

Thermal conductivity

λ

1.1 W/(m·K) at 90 °C

Working temperature

Tworking

1040 °C

Viscosity 10⁴ dPa.s (ISO 7884-2)

Electrical

Dielectric constant, 1MHz

εr,1MHz

7.2 [-] at 20 °C

Electrical resistivity

ρel

125893 Ω·m at 250 °C

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Loss tangent, 1MHz

tanδ1,MHz

6.999999999999999E-3 [-] at 20 °C

Optical

Refractive index

nd

1.51 [-]

at λ=587.6 nm

Stress optical coefficient

k

2.7E-6 mm²/N

DIN 52314

Chemical properties

Element

Weight %

Comment

Si

69 %

SiO₂

Na

13 %

Na₂O

Ca

5 %

CaO

Al

4 %

Al₂O₃

Mg

3 %

MgO

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Technological properties

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

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.