EOS Debuts New Alloys for Metal Additive

EOS adds 2 new alloys to its metal portfolio for additive manufacturing. Nickel-based superalloys target turbomachinery, chemical, maritime and space applications. EOS NickelAlloy IN738 and EOS NickelAlloy K500 are designed for laser powder bed fusion (L-PBF) and will be available for the EOS M 290 family of printers in December and the EOS M 400-4 in H1 2025.

EOS IN738 is designed to combine high-strength and heat resistance with a tensile strength of 1,265 MPa and 4.5% elongation. EOS IN738 is said to withstand higher-temperature environments and shows less deterioration in high-stress applications, such as turbine blades and other energy components.

EOS IN738 

For high-performance energy and turbomachinery systems operating under extreme stress, EOS IN738 is a Nickel-based material, that combines high-strength and heat resistance, with a tensile strength of 1,265 MPa and 4.5% elongation.Additively manufactured parts produced with EOS IN738 can derive a benefit from use in industrial 3D printing: design optimization—providing more cooling and increasing the component’s overall lifespan.

EOS K500

Strong and corrosion-resistant, EOS K500 was developed at the request of a major space launch organization and bridges the performance of nickel-alloys and copper-alloys. This material is made for space applications like thrusters and nozzles, as well as chemical processors making pumps and valves, and maritime applications.

“EOS K500 fills an important gap between two worlds of AM materials, the high mechanical strength of nickel-superalloys and the thermal conductivity of copper alloys,” says Juha Kotila, M. Sc., business development manager, EOS Metal Materials. “The EOS material development team successfully created EOS K500 as a solution for space applications where both mechanical strength and thermal conductivity are needed at the same time, or in extreme conditions.”

Adds Hanna Pirkkalainen, head of Product Management, EOS Metal Materials & Processes, “EOS continues to lead in providing advanced material solutions for industries using additively manufactured parts in challenging conditions. EOS IN738 offers a crack-free solution for high-stress, high-temperature applications, while EOS K500's combination of strength, corrosion resistance, and thermal conductivity enables its applications to perform exceptionally well in extreme temperatures. With these additions to our metal materials portfolio, we can broaden our application range and expand the reach of industrial 3D printing.”

Sources: Press materials received from the company and additional information gleaned from the company’s website.

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