Aluminum Potassium Silicate Doped Tungsten (WVM) Unannealed, Pickled Wire

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Description

WVM is pure tungsten doped with a tiny amount of potassium. This doping, which also interacts with the highly orientation-dependent cold working, creates a stacked microstructure which results in increased dimensional stability at high temperatures.

This material data has been provided by Plansee.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
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.

Ashby charts

Properties

General

PropertyTemperatureValue

Density

23.0 °C

19.3 g/cm³

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Dimension

PropertyValue

Diameter

0.64 - 1 mm

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Dimensions

Available diameters (mm): 0.635; 0.76; 1

Chemical properties

PropertyValue

Aluminium

3E-3 %

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Cadmium

5E-4 %

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Carbon

3E-3 %

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Chromium

2E-3 %

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Copper

1E-3 %

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Iron

3E-3 %

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Lead

5E-4 %

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Mercury

1E-4 %

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Molybdenum

0.01 %

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Nickel

2E-3 %

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Nitrogen

1E-3 %

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Oxygen

5E-3 %

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Potassium

3E-3 - 7E-3 %

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Silicon

3E-3 %

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Tungsten

balance

Technological properties

Property
Application areas

WVM is primarily supplied in rod or wire form for use in evaporation coils or heating filaments.