WLa10 - tungsten lanthanum

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Description

Next to the WTh alloy, the WLa alloy is the most versatile. With a lanthanum (III) oxide content of up to 2 percent by weight, this mixture can be used for a very broad range of applications: electrodes for TIG, orbital, plasma and resistance welding, and many more. Once again: the higher the oxide content, the better the ignition of the electrode. Thanks to its low alloy content, the WLa10 electrode is also suitable for AC welding of aluminium and magnesium. This alloy type is therefore the favourite WTh20 replacement in Europe.

Diese Materialdaten wurden von Gesellschaft für Wolfram Industrie GmbH zur Verfügung gestellt

Alle Daten beziehen sich auf Raumtemperatur soweit nicht anderweitig spezifiziert. SI Einheiten werden verwendt soweit nicht anderweitig spezifiziert.
Äquivalente Standards sind ähnlich zu einem oder mehreren Standards die der Anbieter angegeben hat. Manche äquivalente Standards können strikter sein oder außerhalb der Bedingungen des ursprünglichen Standards.

Ashby charts

Eigenschaften

Allgemein

PropertyTemperatureValueComment

Dichte

23.0 °C

18 - 18.9 g/cm³

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(depends on the forming degree)

Mechanisch

PropertyTemperatureValueComment

Dehnung

23.0 °C

6 %

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Max.

Zugfestigkeit

23.0 °C

1300 - 2200 MPa

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at diameter 1.0–3.2 mm

Thermisch

PropertyTemperatureValueComment

Koeffizient der thermischen Ausdehnung

23.0 °C

4.5E-6 1/K

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at 0–100°C

Wärmeleitfähigkeit

23.0 °C

174 W/(m·K)

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Elektrisch

PropertyTemperatureValue

spezifischer Widerstand

27.0 °C

5.65E-6 Ω·m

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227.0 °C

1.06E-5 Ω·m

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727.0 °C

2.49E-5 Ω·m

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1227.0 °C

4.04E-5 Ω·m

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1727.0 °C

5.67E-5 Ω·m

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2227.0 °C

7.39E-5 Ω·m

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2727.0 °C

9.2E-5 Ω·m

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3227.0 °C

1.11E-4 Ω·m

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Chemical properties

PropertyValueComment

Aluminium

2E-3 %

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Max.

Arsen

2E-3 %

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Max.

Chrom

2E-3 %

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Max.

Eisen

3E-3 %

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Max.

Kalium

1E-3 %

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Max.

Kalzium

2E-3 %

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Max.

Kobalt

3E-3 %

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Max.

Kohlenstoff

5E-3 %

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Max.

Kupfer

1E-3 %

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Max.

Lanthan

0.9 - 1.2 %

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as La2O3

Magnesium

2E-3 %

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Max.

Molybdän

5E-3 %

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Min.

Natrium

2E-3 %

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Max.

Nickel

2E-3 %

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Max.

Schwefel

2E-3 %

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Max.

Silizium

3E-3 %

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Max.

Wolfram

balance

Technological properties

Property
Application areas

Non melting electrode for TIG welding; Electrodes for lightning; Electrodes for plasma cutting and welding and thermal spraying; Cathodes for electronic tubes, wires in different electric applications

Processing history

Heat treatment: annealed, unannealed

Surface Finish

ground, drawn (black/cleaned), hammered