Technical guide · 2026-08-14
Aluminum Alloy Powders
Aluminum alloy powders combine persistent oxide films, low density and combustible dust risk; PSD, satellites and moisture control affect spreading, fusion and safe handling.
01
Definition and boundary
This page covers aluminum powders as powder feedstock; it excludes automatic transfer of wrought or cast properties to consolidated parts.
Reference information only: final acceptance is controlled by the ordered product specification, condition, dimensions and certified test results.
02
How the material system works
Powder production controls morphology and oxide, hydrogen and explosion risk.
Particle-size distribution governs packing, spreading or compaction.
Consolidation route creates the final microstructure and defects.
03
Representative grades and systems
| Grade or system | Selection focus | Qualification |
|---|---|---|
| AlSi10Mg | AlSi10Mg powder requires chemistry and process-specific qualification. | Confirm the governing product specification, delivery condition, section size and acceptance tests before treating designations as interchangeable. |
| AlSi7Mg | AlSi7Mg powder requires chemistry and process-specific qualification. | Confirm the governing product specification, delivery condition, section size and acceptance tests before treating designations as interchangeable. |
| 2024 AM powder | 2024 AM powder powder requires chemistry and process-specific qualification. | Confirm the governing product specification, delivery condition, section size and acceptance tests before treating designations as interchangeable. |
04
Properties and trade-offs
PSD and morphology
Flow and apparent/tap density
oxide, hydrogen and explosion risk
05
Product forms and supply conditions
06
Applications and selection
Applications and selection
- lightweight AM and thermal spray
- Powder metallurgy components
- Additive or spray processing
Properties and trade-offs
- Choose process before PSD limits.
- Qualify laser absorption and hot cracking.
- Validate consolidated properties separately.
07
Fabrication, durability and inspection
Control laser absorption and hot cracking.
Use inert/dry handling appropriate to Aluminum powders.
Apply documented sieving and reuse rules.
08
Procurement checklist
- State Aluminum powders alloy and powder production method.
- Specify particle-size distribution (PSD) range/method, morphology, flow and apparent/tap density.
- Define chemistry, oxygen/interstitial limits, sampling plan, lot blend and virgin/reuse history for Aluminum powders.
09
Standards, sources and review
Standards and designation context
- ASTM B09 powder methods
- ASTM F3049
- ISO/ASTM 52907 and 52928
Authoritative research sources
ASTM International · 2025 fact sheet and active methods
ASTM International · F3049-14(2021)
ISO · ISO/ASTM 52907:2019
ISO · ISO/ASTM 52928:2024