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Table of Contents 

Table of Contents

What is

Tantulum

Tantalum?

Tantalum is a transition metal with atomic number 73 in the periodic table. It is extremely resistant to corrosion and inert to sulfuric and hydrochloric acid below 150°C [1]. Tantalum is quite ductile and malleable, which makes it easy to form and weld. It has high thermal and electrical conductivity and an extremely high melting point of 3000°C [2]. Tantalum is rather heavy, but very strong. It is commonly used in chemical processes, pharmaceuticals, and steel pickling. Tantalum is often used with tungsten to create an alloy with very high chemical resistance and physical strength.



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Figure 1: Tantalum raw metal [3]Figure 2: Tantalum pipes fully prepared [4]

Image of tantalum metal in its raw form.Image Added

Image of tantalum pipes.Image Added



Applications of Tantalum in Piping

Tantalum is commonly used as a heat exchanger in many applications. Due to its high heat resistance, it can withstand extremely hot fluids coming in and out. It is also used in chemical processes such as transporting acids. Tantalum is inert to most acids up to high temperatures and so it is perfect for these applications. For the same reasons, it is also used as a heat exchanger for steel pickling. Tantalum is a specialized material and does not see much use outside of these applications [1].

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Figure 1: Corrosion resistance of tantalum vs other common corrosion resistant metals [1]

Figure 2: A Tantalum heat exchanger [1]

Image of a chart depicting the corrosion resistance of tantalum compared to other common corrosion resistant metals.Image Added

Image of a tantalum heat exchanger.Image Added




Advantages and Disadvantages of Tantalum

Tantalum is a strong metal in both tension and compression, but pays for its strength by being extremely dense [5].  Tantalum has very good chemical resistance until high temperatures, so it is excellent with heated acids. Tantalum is very ductile and malleable which makes it very easy to form. It has a very high melting point which allows it to maintain its chemical and physical properties up to a very high temperature. However, tantalum is very expensive compared to other common metals, which is a major drawback.


References



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