NO 20

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Description

This non-oriented fully processed high frequency grade has guaranteed magnetic properties in accordance with EN 10303:2015, which specifically concerns thin electrical steels for use at frequencies above 100 Hz. Full magnetic characterisation curves at various frequencies are available on request.

High frequency electrical steels have very low loss levels, especially at high frequencies. These properties are a result of the thin gauge of this material (0.20 mm), its particular chemical composition and specific thermomechanical processing.

Related Standards

Equivalent Materials

Los datos sobre este material han sido proporcionados por ArcelorMittal.

A menos que se indique lo contrario, todas las medidas corresponden a condiciones de temperatura ambiente. A menos que se indique lo contrario, se utilizan las unidades del SI.
Las normas armonizadas son similares a uno o varios estándares del proveedor. Es posible que algunas normas armonizadas se ajusten al estándar original, mientras que otras pueden quedar fuera de su alcance.

Ashby charts

Propiedades

General

PropertyValue

Densidad

7.6 g/cm³

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Mecánica

PropertyValueComment

Dureza Vickers

205 - 235 [-]

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Elongación

12 - 22 %

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A80

Límite elástico

395 - 435 MPa

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Number of bends

2 [-]

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min. Guaranteed

Resistencia a la tracción

505 - 545 MPa

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Yield to strength ratio

0.78 - 0.83 [-]

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Magnético

PropertyValueFrequencyComment

Polarización garantizada

1.48 [-]

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min. | at 2500 A/m

1.59 [-]

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min. | at 5000 A/m

1.69 [-]

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min. | at 10000 A/m

Pérdida en el núcleo garantizada

15 W/kg

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400Hz

max. at 1 T

Pérdida en el núcleo normal

32 W/kg

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700Hz

at 1 T

38 W/kg

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400Hz

max. at 1.5 T

Stacking factor

0.93 mm

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min. | Guaranteed

Technological properties

Property
Application areas

This grade is designed for high speed rotating machines (100 to 5000 Hz). It allows minimisation of losses due to higher harmonics and clearly increases machine efficiency in the case of non-sinusoidal power supply. This thin, fully processed grade is also used when weight and volume reduction are of major importance, such as in medical or aviation applications.

Coating

This high frequency grade is available non-insulated or varnished with a C5-type coating.

Other

The above properties are obtained without heat treatment after stamping. The material as supplied possesses all the required magnetic properties.


Dimensions:




NotesBefore side trimmingSide trimmedSlit coils
Min widthMax widthMin widthMax widthMin widthMax width
NO 20310301030600100020600
3. Slit coils: after prior agreement regarding widths between 20 and 44 mm