Materials reference
Cobalt Chrome (EOS MP1)
What is it?
Cobalt Chrome (EOS MP1) is a metal alloy selected for particular strength, temperature, weight or manufacturing needs.
Why would someone print it?
Printing may help create complex shapes or low-volume parts, but the complete finishing and inspection route still matters.
What should a beginner know?
- Confirm the exact machine, material settings and acceptance requirements.
- A material listing does not by itself qualify a production part.
What happens after printing?
Printed parts may need heat treatment, support removal, machining, finishing and inspection before they are accepted. Powder feedstock is often the largest consumable in LPBF economics — public powder price evidence, where records exist, is collected by alloy on its own page.
What is an alloy?
What does this mean? An alloy is a defined metal composition. Why does it matter? Composition, process settings and post-processing affect the finished part.
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Technical material evidence
A cobalt-chromium alloy whose niche is the combination of wear resistance, corrosion resistance and biocompatible history that neither stainless nor titanium covers in one step — dental/medical prostheses and hard-wearing seats, sleeves and implants of various kinds. It prints reliably in LPBF but is unforgiving of under-powering: porosity from lack of fusion shows up immediately in fatigue and wear service. Verify the intended application class, the density evidence and the surface-finish route — with this alloy, finishing is usually part of the performance, not cosmetics.
LPBF · process-family reference. Nominal alloy properties and printed-part properties are different evidence — the table and sections below separate what is verified from what needs your qualified process.
| Property | Evidence |
|---|---|
| Designations | ASTM F75/F76-class CoCr ISO 5832-4/12 class (exact grade mapping not independently verified)OEM ↗ · Source reviewed |
| Nominal material density | Density not verified for this alloy |
| Powder price | Current supplier quote required No public powder list price was captured in the supplied source review. Obtain a current supplier quote. |
Post-processing evidence
Stress relieving + solution annealing relaxes residual stresses and increases ductility (EOS data sheet)
OEM ↗ · Source reviewedThis is a research summary, not a production heat-treatment instruction. Use the current OEM material datasheet, qualified parameter set and application-specific acceptance requirements.
Machine and process compatibility
Manufacturing considerations
- high hardness makes post-machining hard
- medical implant certification path is long
- anisotropic as-built