NEXTREMA® Opaque White (724-8) Sheet

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Description

NEXTREMA® is a unique glass-ceramic material platform. This material combines the glossy appearance of glass with exceptional thermal, chemical, optical and mechanical properties like an attractive bending strength of 100 - 165 MPa for materials with a thickness of around 4 mm. With a thermal resistance of up to 950 °C, depending on the material type, combined with a thermal shock resistance of 600 - 820 °C, it ensures a reliable material performance even under extreme temperature conditions. Our six unique glass-ceramic types combined with the wide range of sizes and thicknesses varying from 2 mm to 6 mm (> 6 mm on request) will open up new possibilities in product design and performance. The unique transmission spectra provide new ideas for combining innovative infrared heating functionalities with attractive lighting effects. The versatility of this material will surely impress you.

This material data has been provided by SCHOTT AG.

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

PropertyTemperatureValueComment

Density

20.0 °C

2.5 - 2.6 g/cm³

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approx.

Porosity

0 %

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approx., ISO 9385

Dimension

PropertyValue

Length

1600 - 1954 mm

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Thickness

3 - 6 mm

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Width

900 - 1100 mm

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Dimensions

Flat cut-to-size panels and bent panels are also available. Formats of flat cut-to-size panels and bent panels on request.

Mechanical

PropertyTemperatureValueComment

Elastic modulus

20.0 °C

84 - 95 GPa

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approx., ASTM C-1259

Flexural strength

20.0 °C

100 - 165 MPa

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approx., DIN EN 1288, Part 5, R45

Hardness, Knoop, HK2

20.0 °C

570 - 600 [-]

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approx., ISO 9385 (HK 0.1/20)

Poisson's ratio

20.0 °C

0.25 - 0.26 [-]

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approx., ASTM C-1259

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

50.0 °C

-8E-7 - 6E-7 1/K

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for 0-50°C, DIN ISO 51045-1, DIN ISO 7991

Max service temperature

950 °C

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short heating (1h) hom.

Specific heat capacity

20.0 °C

800 - 850 J/(kg·K)

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for 20-100°C

Thermal conductivity

90.0 °C

1.5 - 1.7 W/(m·K)

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DIN 51936, ASTM E 1461-01

Electrical

PropertyTemperatureValueComment

Dielectric constant, 1MHz

25.0 °C

6.5 - 7.8 [-]

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DIN 53483

Electrical resistivity

250.0 °C

3.98E+6 - 1.58E+7 Ω·m

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DIN 52326

350.0 °C

158489 - 501187 Ω·m

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DIN 52326

Loss tangent

25.0 °C

0 - 0.02 [-]

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1MHz, DIN 53483

Acoustical

PropertyTemperatureValueComment

Sound speed, longitudinal

20.0 °C

6300 - 6700 m/s

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ASTM C-1259

Chemical properties

PropertyValueComment

Aluminium

15 - 27 %

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Al₂O₃ (DIN EN 1748-2-1)

Barium

0 - 8 %

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BaO (DIN EN 1748-2-1)

Calcium

0 - 8 %

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CaO (DIN EN 1748-2-1)

Lithium

0 - 5 %

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Li₂O (DIN EN 1748-2-1)

Magnesium

0 - 8 %

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MgO (DIN EN 1748-2-1)

Other

0 - 5 %

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(DIN EN 1748-2-1)

Potassium

0 - 2 %

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K₂O (DIN EN 1748-2-1)

Silicon

50 - 80 %

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SiO₂ (DIN EN 1748-2-1)

Sodium

0 - 2 %

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Na₂O (DIN EN 1748-2-1)

Titanium

0 - 5 %

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TiO₂ (DIN EN 1748-2-1)

Zinc

0 - 5 %

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ZnO (DIN EN 1748-2-1)

Zirconium

0 - 5 %

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ZrO₂ (DIN EN 1748-2-1)

Technological properties

Property
Application areas

The following applications are simply examples of areas where NEXTREMA® has already been put to use successfully: BBQ applications - NEXTREMA® provides perfect visibility into the grill and can be used to optimize diverse aspects of the barbecue experience; IR applications - NEXTREMA® transforms infrared heaters into eye-catching design features and protects heating elements stylishly; High temperature furnaces - Use NEXTREMA® to line ovens or apply support plates (e.g. in display manufacturing); Household appliances - NEXTREMA® revolutionizes designs for transparent heating elements and heat resistant thin film coatings; Functional design material - NEXTREMA® is a revolutionary material for innovative product and industry design.

Compliance

NEXTREMA® materials do not contain any harmful substances according to the European directive 2002/95/EC “Hazardous Substances in electrical and electronically Equipment” and fulfill the terms of RoHS without any concerns.

Corrosion properties

The chemical resistance of NEXTREMA® is more extensive than that of most other comparable materials: Acid resistance (DIN 12116) S 1-2; Alkaline resistance (ISO 695) A 1-2; Hydrolytic class (DIN ISO 719) HGB 1.

Processing methods

NEXTREMA® is practically process inert. Even under extreme conditions, the material will not have negative interactions with the process environment. There are no interfering process factors such as gas emissions from organic components.