Cobalt chrome’s material characteristics make it ideal for a wide range of applications in aerospace, medical and specifically dental restorations.
The cobalt chrome family of powders encompasses the MP1, SP2 and RPD alloys. All these powders are designed and tested for use on EOS’ metal systems.
All EOS cobalt chrome powders are shipped with an inspection certificate (according to EN 10204, Type 3.1) showing the results of the extensive QA testing not only of the powder itself but also of test parts built on a dedicated system with a dedicated process.
EOS also offers a wide range of validated processes for each of the above materials. These offer the optimal combination of parameters (e.g. laser power, layer thickness, etc.) in order to ensure that the properties of the 3D printed part are consistently achieved.
EOS CobaltChrome MP1
Parts have good corrosion resistance and high mechanical properties even at elevated temperatures plus are nickel-free and show a fine, uniform crystal grain structure. This combination is ideal for many applications in the aerospace and medical industries.
Typical Part Properties
| Chemical composition in compliance with |
UNS R31537, ISO 5832-4, ASTM F75, ISO 5832-12, ASTM F1537 |
| Ultimate Tensile Strength | 1100 MPa |
| Yield Strength | 600 MPa |
| Elongation @ Break | min 20 % |
EOS CobaltChrome SP2
This powder is a class IIa medical device in accordance with annex IX rule 8 of the MDD 93/42/EEC. It is a cobalt-based metal-ceramic alloy intended for the production of Porcelain-Fused to Metal (PFM) dental restorations, specifically crowns and bridges.
Typical Part Properties
| Chemical composition in compliance with |
“type 4” CoCr dental material as per ISO 22674 |
| Ultimate Tensile Strength | 1350 MPa |
| Yield Strength | 850 MPa |
| Elongation @ Break | 3 % |
EOS CobaltChrome RPD
This powder is a class IIa medical device in accordance with annex IX rule 8 of the MDD 93/42/EEC. It is a cobalt-based dental alloy intended for production of removable partial dentures.
Typical Part Properties
| Chemical composition in compliance with |
“type 5” CoCr dental material as per ISO 22674 |
| Ultimate Tensile Strength | 1100 MPa |
| Yield Strength | 550 MPa |
| Elongation @ Break | 7 % |
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