316 Stainless Steel Infiltrated with Bronze ExOne’s 3D Printed 316 Stainless Steel infiltrated with Bronze is a matrix material composed of 60% stainless steel and 40% bronze infiltrant. The lower yield strength of the material enables it to be easily machined and polished. Applications This material system has low magnetic properties which makes it particularly useful for applications in the food and medical industries. The copper alloy acts as a natural antibacterial agent making it easy to decontaminate printed parts. Since the matrix material is easy to polish, additional applications exist in bath and kitchen hardware prototypes and low volume production. Composition Stainless Steel: Alloy 316 Bronze: 90% Cu / 10% Sn Printed part Using binder jetting technology, ExOne’s state-of-the-art 3D Printing machines produce parts directly from CAD models by precisely controlling the jetting of binder onto a powder bed, and then subsequently spreading new layers of powder. This process is repeated until the part is completed. This 3D Printing process offers increased design flexibility, reduced manufacturing cost and shortened lead times. Post Processing After printing is complete, the parts are cured in an oven, which enables the parts to be handled. After curing, the parts are sintered and infiltrated with bronze above 1100°C. Cool down can be varied to control the machinability and hardness of the material. INDUSTRIAL-GRADE MATERIALS FOR 3D PRINTING

316 Stainless Steel Infiltrated with Bronze Typical Material Properties Material Propertes Test Method Tensile Strength Ultimate Strength Yield Strength (0.2% offset) Elastic Modulus Fractional Density Conventionally machinable Use silicone bronze rod & TIG weld Thermal Conductivity Surface Finish After sintering:  Bead blasting:   Barrel finishing:   ≈ 50 μin Ra (1.25 μm Ra) After Sintering Bead Blasting Barrel Finishing The data and other information (Information) presented in this Data Sheet are provided by and are proprietary information of The ExOne Company (ExOne). ExOne presents this...