6K Additive expands Pennsylvania campus to boost domestic powder output fivefold

Ground was broken on March 30, and the first phase will add four new buildings to the campus. The current powder production building, which handles nickel, titanium, and stainless steel, will triple in footprint. That phase also includes a dedicated melt building for ingot production, an alloy warehouse, and a pre- and post-processing facility. A refractory-metals facility is planned for 2027, while the expanded campus is expected to start producing by the end of this year.

The money behind the project shows how seriously 6K is being taken as a materials supplier. The company said the expansion is being financed by a $23.4 million Defense Production Act Title III grant from the U.S. Department of Defense’s Manufacturing Capability Expansion and Investment Prioritization office, along with about A$48 million, or roughly US$31.4 million, raised in an Australian Securities Exchange IPO that closed on December 4, 2025 at A$1.00 per CDI. 6K has said the federal award was part of a broader program worth more than $50 million aimed at upcycling critical metals for defense applications.

For additive manufacturing, the bigger story is not just volume. It is control over the powders that make metal printing possible in the first place. 6K says the Burgettstown plant is already ISO 9001 certified and runs 24/7, and the expanded site will support tungsten, rhenium, and C-103 alloy for hypersonics and missile systems, plus nickel and titanium powders for aerospace propulsion and specialized alloys for nuclear and fusion energy applications. The company has also highlighted nickel alloys such as Ni625 and Ni718, low oxygen Ti64, stainless steel, copper, and refractory powders including tungsten, tantalum, and rhenium.