6K Additive, Inc.: Premium Metal Powders and Alloy Additions for Additive Manufacturing

6K Additive, Inc. is a US-based producer of high-performance metal powders and alloy additions for additive manufacturing, headquartered in Burgettstown, Pennsylvania. The company uses its proprietary UniMelt® microwave plasma process to upcycle critical materials from domestic scrap sources into high-quality metal powders for aerospace, defense, space, medical, energy and automotive applications. 6K Additive operates multiple production facilities across Pennsylvania, Missouri and West Virginia, and is a recipient of a US$23.4 million Defense Production Act Title III grant supporting capacity expansion for critical defense applications.

What 6K Additive Supplies

Metal Powders for Additive Manufacturing: High-performance metal powders produced using the UniMelt® process, delivering spherical particles free of porosity and satellites with better flowability than competing technologies. The portfolio includes Nickel 718, Nickel 625, Titanium-64, SS316L, Copper alloys, and refractory powder alloys.

Refractory Metal Powders: Tungsten, Niobium (C103), Tantalum, Rhenium, and Molybdenum powders for demanding high-temperature and critical applications.

Alloy Additions: Alloying materials produced from upcycled critical metals, supporting domestic supply chain requirements for government agencies and Tier-1 suppliers.

Mill Products and Pre-Ingots: Metal processing services converting scrap and recycled materials into mill products and pre-ingots for downstream manufacturing.

Additive Manufacturing Applications and Industries

Aerospace and Defense: Qualified metal powders for aerospace components and defense applications, including sourcing from US military depots for conversion into powder and pre-ingots for military use.

Medical: High-purity metal powders qualified with medical device manufacturers, supporting implant and surgical instrument production.

Space and Energy: Refractory and high-temperature alloys for space and energy applications requiring extreme performance characteristics.

Industrial and Automotive: Nickel, titanium, stainless steel and copper alloy powders for industrial additive manufacturing and automotive component production.

UniMelt® Process and Sustainable Production

The UniMelt® microwave plasma process leverages sustainable feedstock sources including certified millings from CNC operations, grindings, used powder, failed builds and support material from the additive manufacturing printing process. According to 6K Additive, this approach uses significantly less energy and produces significantly lower carbon emissions for nickel production compared to conventional atomization processes.

Who 6K Additive Works With

• Aerospace and defense OEMs and Tier-1 suppliers
• Medical device manufacturers
• Space and energy technology companies
• Automotive and industrial manufacturers
• Additive manufacturing service bureaus and print farms
• Government agencies and defense programs
• Metal powder distributors (including Advance Metal Powder for India, Broder Metals Group for UK and Ireland)
• Research institutions and materials development organizations

Commercial Relevance for Additive Manufacturing Buyers

For professional buyers, the 6K Additive portfolio is relevant to metal powder sourcing for laser powder bed fusion, electron beam melting, directed energy deposition and other additive manufacturing processes. The company’s qualification with Tier-1 aerospace and medical organizations provides confidence for buyers evaluating domestic supply chain options for critical materials. Refractory metal powders address high-temperature applications where conventional alloys are insufficient. Commercial enquiries, qualification requirements and distribution arrangements should be addressed through the company’s official business channels.

6K Additive, Inc. at Formnext Frankfurt 2026

Formnext Frankfurt is the world’s leading exhibition for additive manufacturing and industrial 3D printing, bringing together technology providers, material suppliers, and professional buyers from across the AM value chain. 6K Additive participates in Formnext Frankfurt 2026, where its metal powder portfolio and UniMelt® production process are relevant to attendees researching powder supply for aerospace, medical, defense and industrial additive manufacturing applications.

6K Additive, Inc. FAQ

• What does 6K Additive produce? High-performance metal powders for additive manufacturing, including Nickel 718, Nickel 625, Titanium-64, SS316L, Copper alloys, and refractory powders such as Tungsten, Niobium (C103), Tantalum, Rhenium, and Molybdenum.
• What is the UniMelt® process? A proprietary microwave plasma manufacturing process that upcycles critical materials from domestic scrap sources into spherical, high-quality metal powders with low porosity and good flowability.
• Where is 6K Additive based? 6K Additive is headquartered in Burgettstown, Pennsylvania, USA, with additional production facilities in Washington, Missouri; Red Lion, Pennsylvania; New Castle, Pennsylvania; and New Cumberland, West Virginia.
• What industries does 6K Additive serve? Aerospace, defense, space, medical, energy, automotive and industrial manufacturing.
• What is the Defense Production Act Title III grant? A US$23.4 million grant received by 6K Additive to expand production capacity for critical defense applications, including sourcing components from US military depots for conversion into powder and pre-ingots.
• Does 6K Additive offer sustainable metal powders? Yes. The UniMelt® process uses sustainable feedstock sources and, according to the company, uses significantly less energy and produces significantly lower carbon emissions for nickel production compared to conventional atomization.
• Is 6K Additive exhibiting at Formnext Frankfurt 2026? Yes. 6K Additive participates in Formnext Frankfurt 2026, the world’s leading exhibition for additive manufacturing and industrial 3D printing.
• How can a buyer enquire about 6K Additive powders? Professional enquiries should be directed through the company’s official business channels or by connecting with the 6K Additive team at Formnext Frankfurt 2026.

For strategic context on the Formnext Frankfurt trade fair, review the Formnext Frankfurt Trade Fair Overview. For official product information and company details, visit the 6K Additive website.