North Andover, MA. September 8, 2021 – 6K Additive, a division of 6K, the leader in the production of sustainable advanced materials for additive manufacturing and energy storage, has announced the commercial availability of refractory metal powders for additive manufacturing. Materials such as tungsten, rhenium, tungsten/rhenium and niobium-based powders used for defense, aerospace and medical industries are sought after materials for high-temperature, high-strength applications.