TURKU, Finland, Oct 14, 2025 – EOS, a leading supplier of responsible manufacturing solutions for industrial 3D printing, today announced the addition of four (4) new metal additive manufacturing (AM) materials to its portfolio: EOS FeNi36, EOS NickelAlloy C22, EOS Steel 42CrMo4, and EOS StainlessSteel 316L-4404, each optimized for EOS Laser Powder Bed Fusion (LPBF) systems. These new materials further expand the company’s ability to address specialized AM requirements across the aerospace, energy, chemical, automotive, and marine industries, among others.
FeNi36: Iron-Nickel alloy, for unmatched dimensional stability under thermal cycling
Designed for aerospace, space, defense, and energy applications, EOS FeNi36 is ideal for applications where precision and stability under fluctuating temperatures are critical. With an exceptionally low coefficient of thermal expansion (<2 ppm/K between 30–150°C), EOS FeNi36 provides up to 10x lower thermal expansion than alloys such as 316L and MS1. Typical applications include optical housings, mirror mounts, cryogenic instrument components, optical benches, precision metrology inserts, and small composite tooling inserts.
The material will be showcased at Formnext 2025 with demonstration parts such as a lobed jet engine nozzle and optical housing. EOS FeNi36 is compatible with the EOS M 290 system and is commercially available now.
EOS NickelAlloy C22: High strength and extreme corrosion resistance
EOS NickelAlloy C22 brings outstanding corrosion resistance, high strength, and toughness to industries where contact with biological and chemical media is unavoidable. The alloy is designed for applications in chemical processing and food processing, providing manufacturers with an AM-ready solution for components exposed to highly aggressive environments.
With EOS NickelAlloy C22, EOS extends its portfolio into new fields, enabling broader adoption of AM in chemical industries. The material is initially compatible with EOS M 290 systems.
EOS Steel 42CrMo4: Trusted engineering steel for mobility and automotive
EOS Steel 42CrMo4 is one of the most widely used steels in traditional automotive manufacturing, now optimized for AM. This low-alloyed steel is prized for its high toughness and strength, making it ideal for engineering components, gears, and shafts. By enabling the production of this cost-effective, industry-standard steel for metal 3D printing, EOS provides automotive engineers with new possibilities for lightweight design, faster development cycles, and greater supply chain flexibility. EOS 42CrMo4 is compatible with EOS M 290 systems and is commercially available now.
EOS StainlessSteel 316L-4404: Affordable, industrial-grade stainless steel
EOS StainlessSteel 316L-4404 is a European industry-standard stainless steel variant that combines high ductility, toughness, strength, and corrosion resistance. Tailored for industries such as chemical processing, food production, water handling, and marine, the alloy delivers proven performance at a lower cost. The new chemistry variant is more industrial grade than standard EOS 316L, while maintaining compatibility with existing StainlessSteel 316L parameter sets. The material is compatible with a wide range of systems, including EOS M 290, EOS M 400, EOS M 400-4, and EOS M 300-4.
“With these additions, we continue to expand our materials portfolio to meet the most demanding industry requirements. Whether it is the unmatched thermal stability of EOS FeNi36, the corrosion resistance of NickelAlloy C22, or the accessibility of widely used steels like 42CrMo4 and 316L-4404, we are enabling our customers to innovate faster, address supply chain challenges, and bring additive manufacturing into new applications. Our team is excited to discuss our entire metal materials portfolio at Formnext.” said, Hanna Pirkkalainen, head of product, EOS Oy.
About EOS
EOS provides responsible manufacturing solutions via industrial 3D printing technologies to organizations around the world. Since 1989, EOS has shaped the future of manufacturing by enabling its customers to innovate and differentiate through expert guidance, technology and services, leveraging its end-to-end additive manufacturing (AM) industry partnerships. From strategy to education to production, EOS is the leading global partner for both metal and polymer AM solutions, accelerating time-to-market for its customers through high-quality production efficiencies and sustainable solutions. For more information, visit https://www.eos.info.
