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Characteristics of Tantalum Rod and How to Choose the Right Tantalum Rod

If you need a metal rod that can withstand high temperatures and is extremely chemically resistant to most corrosive environments, then Tantalum Rod is the right choice for you. 

Tantalum Rod is characterized by its strong resistance to heat and wear. It has a melting point of 5,463 °F (2,996 °C), the fourth highest of all metals. Like most metals, Tantalum forms a thin, dense, protective oxide layer (Ta2O5) when exposed to the atmosphere. This oxide layer adheres firmly to the metal surface, acting as a barrier to protect the underlying metal from further corrosion. 

Below are some examples of common applications for Tantalum Rod. Each application includes some recommendations based on how others in the industry specify Tantalum Rod for such use. If your application is not on the list, we recommend that you contact us at +86-13995656368. 

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Machined Fasteners

Machined Tantalum Fasteners are bolts, screws, nuts, washers, and threaded rods made from Tantalum Metal Rod. Tantalum fasteners are found in industries such as mining, energy and pharmaceuticals, as well as in metal and chemical processing. For customers who prefer to make their own fasteners, unannealed tantalum rod is often requested. Annealed tantalum rod is sometimes difficult to machine because the metal has a tendency to gel. Unannealed tantalum rod allows for easier machining and threading. 

Vacuum Furnace Heating Elements

Many vacuum furnace components contain tantalum rods due to its oxidation resistance and high melting point. Grain-stabilized tantalum rods are designed to survive longer in high temperature environments by reducing grain growth. We can stabilize the grain of the tantalum rod by producing the product using a powder metallurgy process that produces a very uniform and fine grain size, or as an alternative, produce the tantalum rod using very small amounts of additives such as yttrium. Both of these methods can extend or arrest the growth of the tantalum grain, thereby extending the life expectancy of the machine as it is able to withstand high temperatures for longer periods of time. 

Machined Parts for Chemical Processing Equipment

Tantalum rods have corrosion-resistant properties, making them the material of choice for machined parts used in chemical processing equipment. Tantalum machined parts replace inferior materials that perform poorly in harsh chemical environments and require a lot of maintenance. 

X-Ray/Radiation Shielding

Due to its high density, tantalum’s radiopaque properties make it ideal for X-ray and shielding applications seeking to prevent radiation leaks. Tantalum rods are often made into shielding to protect sensitive electronic components in aerospace structures and components operating in corrosive environments. There is a wide variation in tantalum rods used for such applications. Because the shielding is due to tantalum’s inherent density, nearly any grade of tantalum rod will do the job. 

Sputtering Targets for Gun Barrels

Tantalum rods are sometimes used as sputtering targets, coating the inside of gun barrels with tantalum as an alternative to chromium. This makes the gun barrel manufacturing process more environmentally friendly and allows manufacturers to reduce their ecological impact. When purchasing tantalum for such applications, most customers prefer fully annealed, melted in an electron beam furnace (ASTM B365 R05200) tantalum rods with a low purity of 99.95%. Some customers specify tantalum 2.5% tungsten or tantalum 10% tungsten rods. 

The above are the recommended applications for tantalum rods. To learn about the purity of tantalum rods and more detailed information, please click this link to consult our tantalum rod prices and parameters.


Post time: Mar-17-2025