Purchase Tungsten Semi-Finished Products

Tungsten is characterized by its excellent thermal and electrical conductivity, high density, resistance to thermal shock, as well as corrosion resistance and high melting point.

In its pure state, this white, shiny material is also known as a brittle heavy metal with a high density. Compared to all other pure metals, it has the highest melting point and the second-highest boiling point.

Wolfram is the German name for the chemical element with the symbol ‘W’. The commonly used word ‘Tungsten’ derives from the Swedish term “Tung Steen”, meaning ‘heavy stone.’ Carl Wilhelm Scheele discovered an unknown salt in calcium tungstate in 1781, which was not the tungsten we know today but rather wolframite. It was the brothers Fausto and Juan José Elhuyar who, under the guidance of Scheele, reduced tungsten trioxide to obtain the tungsten metal we know today.

The material properties of tungsten make it suitable for critical and demanding applications where material failure is not an option. These include aerospace, semiconductors, electronics, industrial furnaces, and more. One of the most well-known applications is the filament in traditional incandescent light bulbs.

In addition to high-purity tungsten, HWN Titan GmbH also offers tungsten alloys, known as doped tungsten. Material properties can be specifically improved by adding potassium, which increases its performance at higher temperatures. For example, potassium-doped tungsten is widely used in the lighting industry, particularly in rod form where it enhances strength.

By adding lanthanum, the material’s high-temperature strength and electrical behavior are further improved. Tungsten-lanthanum alloys exhibit better resistance to creep and higher recrystallization temperatures.