TANTALUM METAL INGOTS - Important component of superalloys

Tantalum has a high melting point (2996°C) and is resistant to corrosion and oxidation, so it is a sought after component in superalloys, among other applications. Superalloys are based on cobalt, nickel or iron and are mainly used in applications in areas where high temperatures predominate and high mechanical stresses occur.

The tantalum metal ingots produced by H.C. Starck are used as a superalloy additive in nickel-based alloys, where the addition of this element induces and optimizes the desired solid solution strengthening. High temperature application areas subject to thermal, vibration and impact shocks require such high strength source materials. Superalloys that contain tantalum resist corrosion and oxidation and provide great surface stability.

With a tantalum content between 3 and 10%, these superalloys are used to improve assembly parts for the aerospace industry as well as turbine blades in aircraft engines and industrial gas turbines.

Another application for tantalum metal ingots is sputtering targets. Sputtering targets are mainly used in the semiconductor industry, for high-speed data processing and in memory solutions in consumer electronics. Examples include logic IC components, flash memory and DRAM modules.

Our application technicians have an outstanding knowledge of materials, detailed process understanding and expertise gained over many years in many innovative areas in the market, in applications and in technology. They are supported by in-house, accredited chemical analysis, which ensures that H.C. Starck production meets precise specifications.

We use recycling both to ensure a supply of raw materials and to remain independent from fluctuations in supply and price. We are able to reclaim tantalum from almost any type of scrap with a tantalum content of 1 to 99%. Based on our "closed-loop offer", we accept used, recyclable products that contain tantalum from our customers and reprocess them to produce high-performance tantalum products.

Conflict-free tantalum supply

H.C. H.C. Starck processes only raw materials from ethically acceptable, conflict-free sources. This also applies for the procurement and processing of tantalum. We only purchase raw materials that meet the specifications of the OECD ("Due Diligence Guidelines for Supply Chains of Minerals from Conflict-Affected and High-Risk Areas"). Our company and our tantalum processing sites are certified in the context of the Conflict-Free Smelter (CFS) Validation Program of the independent Electronics Industry Citizenship Coalition (EICC) and the Global e-Sustainability Initiative (GeSI).


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