AlSi7Mg Powder (Al-Si7-Mg)
High-strength castable aluminum for automotive structural AM parts. Small quantities, prototypes and custom made-to-order specifications are welcome.
15–150µmParticle Size Range
Al-Si7-MgAlloy Family
Custom Made-to-OrderGrade & Quantity
WorldwideExport Shipping
AlSi7Mg Powder — Grades & Specifications
High-strength castable aluminum for automotive structural AM parts. The options below are typical; specify your target values in the request form and we will confirm availability, lead time and pricing.
| Material | AlSi7Mg Powder |
|---|---|
| Chemical formula / alloy designation | Al-Si7-Mg |
| CAS number | Alloy — no single CAS number (Al base; Si/Mg per AlSi7Mg spec) |
| Particle size | 15–53 / 45–105 / 75–150µm graded cuts |
| Composition | Si 6.5–7.5%, Mg 0.3–0.5%, Zn ≤0.2%, Ti+Zr ≤0.15%, Mn ≤0.35%, Fe ≤0.45%, Cu ≤0.2%, Al balance; O₂ 800–1500ppm |
| Morphology | Spherical, gas-atomized (AM-grade flowability) |
| Appearance | Silver-gray metallic powder |
| Typical applications | Automotive Structural Parts, Aerospace Lightweight Parts, General Casting-Replacement Parts |
Applications by Industry
Automotive Structural PartsHigh-strength castable aluminum for automotive structural AM parts.
Aerospace Lightweight PartsGood strength-to-weight ratio for aerospace AM components.
General Casting-Replacement PartsA common castable Al-Si-Mg alloy adapted for AM production.
Particle Size & Mesh Conversion
Reference for converting between US mesh and microns/millimetres. Figures are nominal sieve openings and may vary slightly by standard.
| Mesh (US) | Micron (µm) | mm | Inch | Remarks |
|---|---|---|---|---|
| 3 | 6730 | 6.730 | 0.2650 | |
| 4 | 4760 | 4.760 | 0.1870 | |
| 5 | 4000 | 4.000 | 0.1570 | |
| 6 | 3360 | 3.360 | 0.1320 | |
| 7 | 2830 | 2.830 | 0.1110 | |
| 8 | 2380 | 2.380 | 0.0937 | |
| 10 | 2000 | 2.000 | 0.0787 | |
| 12 | 1680 | 1.680 | 0.0661 | |
| 14 | 1410 | 1.410 | 0.0555 | |
| 16 | 1190 | 1.190 | 0.0469 | |
| 18 | 1000 | 1.000 | 0.0394 | |
| 20 | 841 | 0.841 | 0.0331 | |
| 25 | 707 | 0.707 | 0.0278 | |
| 30 | 595 | 0.595 | 0.0234 | |
| 35 | 500 | 0.500 | 0.0197 | |
| 40 | 420 | 0.420 | 0.0165 | |
| 45 | 354 | 0.354 | 0.0138 | |
| 50 | 297 | 0.297 | 0.0117 | |
| 60 | 250 | 0.250 | 0.0098 | |
| 70 | 210 | 0.210 | 0.0083 | |
| 80 | 177 | 0.177 | 0.0070 | |
| 100 | 149 | 0.149 | 0.0059 | |
| 120 | 125 | 0.125 | 0.0049 | |
| 140 | 105 | 0.105 | 0.0041 | |
| — | 100 | 0.100 | 0.0039 | Sand |
| 170 | 88 | 0.088 | 0.0035 | |
| 200 | 74 | 0.074 | 0.0029 | |
| — | 70 | 0.070 | 0.0027 | |
| 230 | 63 | 0.063 | 0.0024 | Human hair |
| — | 55 | 0.055 | 0.00217 | |
| 270 | 53 | 0.053 | 0.0021 | |
| — | 50 | 0.050 | 0.00197 | |
| 325 | 44 | 0.044 | 0.0017 | |
| — | 40 | 0.040 | 0.00157 | |
| 400 | 37 | 0.037 | 0.0015 | |
| 550 | 25 | 0.025 | 0.00099 | |
| 625 | 20 | 0.020 | 0.00079 | |
| 1200 | 12 | 0.012 | 0.0005 | |
| 1250 | 10 | 0.010 | 0.000394 | |
| — | 7 | 0.007 | 0.000276 | |
| 2500 | 5 | 0.005 | 0.000197 | |
| 4800 | 3 | 0.003 | 0.000118 | |
| 5000 | 2.5 | 0.0025 | 0.000099 | Bacteria (approx.) |
| 12000 | 1 | 0.001 | 0.0000394 |
Information Required for Quotation
- Grade / purity (e.g. ≥99.95%)
- Particle size / target (µm, or mesh)
- Quantity
- Application environment
- Required delivery country
Lead time depends on grade, particle size, quantity and processing requirements. Export availability can be reviewed based on destination country and material type. A Certificate of Analysis can be provided on request.
Request a Quote or Custom Order
Tell us your grade, particle size and quantity. We typically reply within one business day.
Frequently Asked Questions
What purity / grade options are available for AlSi7Mg Powder?
AlSi7Mg Powder is offered in the grades listed on this page (Si 6.5–7.5%, Mg 0.3–0.5%, Zn ≤0.2%, Ti+Zr ≤0.15%, Mn ≤0.35%, Fe ≤0.45%, Cu ≤0.2%, Al balance; O₂ 800–1500ppm). Other grades can be reviewed on request depending on your application and quantity.
What particle sizes can you supply for AlSi7Mg Powder?
The typical size range supplied is 15–53 / 45–105 / 75–150µm graded cuts. Please specify your target value in the request form and we will confirm availability.
Can AlSi7Mg Powder be made to custom specifications?
Yes. AlSi7Mg Powder can be produced to order — grade, particle size and packaging can be customized to your specification. Select "Custom Order" in the request form and provide your target values.
What is the minimum order quantity (MOQ)?
Order quantity is flexible and small quantities and prototype requests are welcome. Please state your required quantity in the form for an accurate quotation.
Can you export and ship AlSi7Mg Powder internationally?
Yes, export inquiries are welcome. Availability and shipping are reviewed based on destination country, grade and quantity.
Do you provide a Certificate of Analysis (COA) or technical data?
A Certificate of Analysis and technical data can be provided on request for supplied lots.
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Request a Quote for AlSi7Mg Powder
Send us your grade, particle size, quantity and application. We will review availability, quotation and lead time. Small quantities, prototypes and custom made-to-order specifications are welcome.