GMH Gruppe, Georgsmarienhütte, Germany, has combined the production of advanced metal powders and Additive Manufacturing under the umbrella of ProMateria GmbH. The new company, led by Robert Teuber and Philip Stöhr, is co-located alongside GMH’s sister company Energietechnik Essen GmbH.

ProMateria’s focus is on the use of high nitrogen-alloyed steels (HNS) in Powder Metallurgy and serial Additive Manufacturing. These materials combine high corrosion resistance with hardness, strength and biocompatibility, opening up opportunities for high-performance components in the aerospace, medical, luxury goods, engineering and energy sectors.

Another field of application is individualised sports equipment: together with Make Golf, ProMateria is currently developing one-off golf clubs that are tailored to an individual’s swing profile and biometric data.

ProMateria produces the metal powder in batches ranging from 25 kg to 10 tonnes in a high-throughput process tailored to Powder Metallurgy. The HNS feedstock is supplied by Energietechnik Essen.

“With ProMateria, we combine our own powder production, Additive Manufacturing and finishing,” stated Philip Stöhr, Commercial Director of ProMateria.

Using Tritone’s MoldJet sinter-based Additive Manufacturing technology and in-house metal pastes, the company has been able to carry on AM as a flexible prototyping to full series production across a fleet of six AM machines. ISO 9001 certification for this area is expected in the third quarter of 2026.

Beyond HNS, ProMateria offers a range of materials including stainless steel, tool steel, low-alloy steels, high-temperature alloys, titanium alloys, ceramics, copper and others.

Author: Andy Cormack