Aluminum Powder for Additive Manufacturing
Your complete guide to aluminum alloy powders: AlSi10Mg, Al7075, Scalmalloy, and A20X. Compare mechanical properties, PSD requirements, pricing based on PS Price Index data, heat treatment protocols, and find verified Chinese manufacturers with competitive EXW pricing.
1. Aluminum Powder Grades Compared
Aluminum alloys are the most cost-effective entry point into metal additive manufacturing. They offer excellent thermal conductivity, low density, and good mechanical properties at a fraction of titanium's cost. The challenge is managing the high reflectivity and thermal conductivity during printing.
| Grade | UTS (MPa) | Elongation | Price (CNY/kg) | Best For |
|---|---|---|---|---|
| AlSi10Mg | 320–460 | 3–8% | ¥65–100 | Automotive, heat exchangers, general prototyping |
| Al7075 | 480–570 | 5–11% | ¥90–150 | High-strength structural, aerospace secondary |
| Scalmalloy | 480–540 | 8–13% | ¥350–550 | Aerospace, high-fatigue, racing |
| A20X | 410–470 | 4–7% | ¥180–300 | High-temperature (up to 250°C), aerospace |
2. Heat Treatment — Critical for Aluminum AM Parts
Unlike titanium where as-built properties are often sufficient, aluminum AM parts almost always require post-process heat treatment to relieve residual stress and optimize mechanical properties.
3. Key Applications by Industry
Lightweight brackets, heat exchangers, suspension components. AlSi10Mg dominates. Serially produced by BMW, Mercedes, Porsche.
Secondary structures, UAV components, antenna brackets. Scalmalloy or A20X for high-strength; AlSi10Mg for non-critical.
Conformal cooling channels, heat sinks, cold plates. AlSi10Mg's thermal conductivity (140–170 W/mK) is ideal.
Conformal cooling inserts for injection molds. AlSi10Mg provides 30–40% cycle time reduction vs. conventional cooling.
Get Competitive Quotes for Aluminum Powder
Specify your grade, PSD, and volume. We'll match you with pre-vetted Chinese manufacturers in 24 hours.
Request Aluminum Powder Quotes →