Materials reference
Aluminium AlSi10Mg
What is it?
Aluminium AlSi10Mg 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
The workhorse aluminum alloy of laser powder bed fusion: silicon gives the melt pool fluidity and crack resistance that pure and high-strength aluminum alloys lack, so AlSi10Mg prints densely where many competitors cannot. Parts are chosen for stiffness per kilogram in lightweighting, thermal and ducting applications. The AM-specific catch: its final strength depends heavily on heat treatment and on porosity/hydrogen management, and solution-treated parts can distort. Treat as-printed versus T6-condition numbers as different materials, and confirm which the supplier is quoting.
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 | A-AlSi10Mg ISO AlSi10Mg EN AC-46000OEM ↗ · 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
T6 AM-optimized: solution 30 min @530C water quench + aging 6 h @165C air cool; OEM states ~40% shorter than conventional T6 (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
- hydrogen porosity risk
- thin-wall cracking if T6 ramp too fast
- high reflectivity needs good laser coupling