Made to order
- COA on request — PSD, sphericity, flow rate, chemistry
- Mutual NDA before any file or spec review
CNPC AlSi10Mg Powder for Metal 3D Printing | 20–63 µm LPBF – 10 kg / 22 lbs
CNPC AlSi10Mg Aluminum powder price: $410 per 10 kg ($41.00/kg)
CNPC AlSi10Mg powder for LPBF — made by CNPC Powder, gas-atomized, 20–63 µm, sold in 10 kg lots.
- Certificate of analysis (COA) for the lot, on request
Manufacturer: CNPC Powder
What your process engineer actually checks
Locked, traceable lot chemistry
A COA on request documents PSD, sphericity, flow rate, apparent density, and full chemistry — and a lot number you can trace.
A materials engineer on the line
Questions on ferrite content, flowability, recyclate ratios, or HIP response? A materials engineer answers directly — not a contact-form bot. NDA standard.
CNPC Powder · AlSi10Mg · LPBF metal powder
CNPC AlSi10Mg — the most widely printed aluminum alloy for LPBF — light, strong for its weight and thermally conductive, for lightweight brackets, housings and heat exchangers. Sold by Additive Plus in 10 kg lots at a published price.
Made by CNPC Powder. Gas-atomized aluminum casting alloy powder from CNPC Powder’s own atomization plant in Fengyang, China. CNPC is ISO 9001 certified, a member of MPIF and EPMA, and exports metal powders to more than 40 countries. Additive Plus sells and supports it in the US: you order and pay here, and our materials engineer answers your questions.
Powder at a glance
Why teams run it
Light & stiff
Low density with a good strength-to-weight ratio — the default for lightweighting in LPBF.
Thermal parts
Good thermal conductivity for heat sinks, cold plates and heat exchangers with printed internal channels.
Named manufacturer, COA on request
Made by CNPC Powder and shipped in factory-sealed drums with the lot’s certificate of analysis — you know exactly whose powder is in your machine.
Published price, 10 kg packs
$41/kg in a 10 kg pack, ordered online — no account, no mill-size minimum. Larger quantities quoted on request.
What you can print
Representative examples of LPBF parts in this alloy family.
Where it’s used
- Lightweight brackets — topology-optimized structural parts.
- Heat exchangers & cold plates — thin walls and conformal channels.
- Housings & enclosures — automotive, drone and electronics housings.
- Prototypes — fast functional aluminum prototypes.
How LPBF printing works
1 · Load & printFill the dispenser and run your AlSi10Mg parameter set — a laser melts each layer of powder under inert gas.
2 · Stress-relieve & removeStress-relieve on the plate, then cut parts off and remove supports.
3 · Heat-treat & finishApply the heat treatment your spec calls for, then machine, blast or polish. Sieve and reuse the unmelted powder.
Chemical composition
| Aluminum (Al) | Balance |
| Silicon (Si) | 9.0–11.0% |
| Magnesium (Mg) | 0.25–0.45% |
Main alloying elements as published by CNPC; the full chemistry of your lot is on its COA.
Mechanical properties
| Tensile strength, heat treated | ≥ 340 MPa |
| Yield strength, heat treated | ≥ 250 MPa |
| Elongation, heat treated | ≥ 10% |
| Hardness, heat treated | 100 HV1 |
| Thermal conductivity, heat treated | 181.5 W/(m·K) |
| Electrical conductivity | 23.2 %IACS as built · 43.1 %IACS heat treated |
| Relative density | 99.94% |
| Heat treatment | 250 °C, 2 hours |
| Thermal conductivity | 103 W/(m·K) |
Mechanical figures published by the manufacturer for this grade. Treat them as a starting point for your own qualification, not a guaranteed result on your machine.
Specifications
| Material | AlSi10Mg aluminum alloy |
| Designation | EN AC-43000 (AlSi10Mg) |
| Particle size (PSD) | 20–63 µm |
| Size distribution | D10 15–30 µm · D50 30–45 µm · D90 55–70 µm |
| Flow rate (Hall) | ≤ 90 s / 50 g |
| Apparent density | ≥ 1.1 g/cm³ |
| Tap density | ≥ 1.3 g/cm³ |
| Sphericity | ≥ 90% |
| Atomization | Gas-atomized |
| Oxygen | ≤ 0.10% |
| Manufacturer | CNPC Powder |
| Country of origin | China (Fengyang, Anhui) |
| Package | 10 kg, factory-sealed drums |
| Documentation | Certificate of analysis (COA) for the lot, on request |
| Ship date | Confirmed by email after you order |
What you get & how you buy
- 10 kg in factory-sealed drums of AlSi10Mg powder, 20–63 µm.
- A certificate of analysis (COA) for the lot.
- Ship date confirmed by email after you order — if it does not work for you, we cancel and refund in full.
- Setup recommendations — recommended starting parameters from our materials engineer. A starting point you tune on your own machine, not a guaranteed printer-specific profile.
- A materials engineer on call for parameters, sieving and powder reuse. NDA on request.
Add to cart — $410 Talk to a materials engineer
Before you order
This lot is a 20–63 µm cut.
CNPC supplies this AlSi10Mg in a 20–63 µm particle-size range, slightly coarser at the top end than the common 15–53 µm cut. Most LPBF systems run it well; if your machine or parameter set is tuned to a finer cut, ask our materials engineer first.
Made in China. If your program requires US- or allied-origin material (for example DFARS-compliant supply), see our Carpenter Additive alternative or ask our engineer.
Need more than a few containers?
For 50 kg and up, a different particle-size cut, or a grade we don’t list, write to us — we quote larger lots directly with CNPC.
FAQ
What is the minimum order?
10 kg of powder. For larger quantities, write to us for a volume quote.
When will it ship?
After you place your order we confirm availability and the ship date by email. If that date does not work for you, we cancel the order and refund it in full.
Which printers can run it?
Any open LPBF system with parameters for AlSi10Mg — for example EOS, SLM/Nikon SLM, Renishaw, Farsoon, and our own AO Metal printers. We share recommended starting parameters; you tune them on your machine.
Do I get a certificate?
Yes — on request: a certificate of analysis (COA) for the lot, with its chemistry and particle-size data.
Who makes this powder?
CNPC Powder, a metal-powder manufacturer with its own atomization plant in Fengyang, China. Additive Plus sells and supports it in the US.
CNPC AlSi10Mg — $410 per 10 kg
Made by CNPC Powder · 20–63 µm · COA on request · ship date confirmed after you order. Not sure it fits your machine? Talk to a materials engineer first.
| Brand | CNPC Powder |
| Technology | Metal LPBF |
| Powder Package | 10 kg, sealed drums |
| PSD (particle size distribution) | 20-63 micrometres |
| Printing Materials | Metal Powders |
| Material | AlSi10Mg |
| Country of origin | China |
| Production Method | Gas Atomization |
| Application | Composite Tooling, Engineering, Jigs & Fixtures, Manufacturing |
We atomize our own. Custom variants on request.
Tighter PSD, modified chemistry, custom blend? Our ATO atomization lab runs custom batches in 3–4 weeks. Biocompatible, refractory, proprietary — all in-house, verified before ship.
Complete the workflow
- ✓ 316L — stronger pitting and chemical resistance than 304 stainless
- ✓ Precision-ground flatness for consistent first-layer adhesion
- ✓ Made to order — choose your speed below: Express 2–3 wks, or Standard 6–8 wks (save ~45%)
Immersion-separation industrial vacuum for reactive metal powder — aluminium, titanium and similar alloys — in 3D printing and powder handling. Captures powder under liquid so it's never a dry, ignition-sensitive cloud. ATEX-rated, antistatic, single-phase.
- ✓ For reactive AM powder (Al, Ti, Mg) — the safe alternative to a dry vacuum
- ✓ Two-stage antistatic filtration + grounded construction · ATEX docs on request
- ✓ In US stock · ships in 2 business days · genuine Delfin unit
Hose and tools are not part of the standard configuration. The Delfin KT1006 accessory kit ($721) fits this 2-inch inlet: 10 ft hose, wand, floor brush and nozzle.
Automated 2-in-1 blasting cell that depowders and surface-finishes powder-bed 3D-printed parts in one enclosed, software-controlled cycle.
- ✓ Depowdering + surface finishing in one ATEX-compliant cell
- ✓ Polymer PBF (SLS, MJF, HSS, SAF) + de-powdered metal parts
- ✓ Lead time: 6–9 weeks — built to order · install + training included
CNPC 316L powder for LPBF — made by CNPC Powder, nitrogen gas-atomized, 15–53 µm, sold in 10 kg containers.
- 10 kg container · $38/kg · $380
- Certificate of analysis (COA) for the lot, on request
- Ship date confirmed by email after you order
Manufacturer: CNPC Powder · materials engineer on call · order below or talk to an engineer first.
Other alloys in US stock now
Premium-grade LPBF powders, COA on request — add to cart or request a formal quote.
Carpenter Additive · Made in USAAluminum Alloy Powder AlSi10MgIn stock · ships in ~2 business days$815 / 10 kg · $81.50/kg
Carpenter Additive · Made in USAM300 Maraging Steel Powder for Metal 3D PrintingIn stock · ships in ~2 business days$1,210 / 10 kg · $121.00/kg
Carpenter Additive · Made in USAIN718 Nickel Alloy Powder for Metal 3D PrintingIn stock · ships in ~2 business days$985 / 10 kg · $98.50/kg
Amaero · Made in USATi64 Grade 23 (ELI) Titanium Alloy Powder for Metal 3D PrintingIn stock · ships in ~2 business days$2,405 / 10 kg · $240.50/kgCommon questions
Don't see yours? Email [email protected] — NDA standard, typical reply within 4 hours.
What quantity do you sell — can I order a small amount?
Do you provide a Certificate of Analysis (COA)?
Place your order, or talk to an engineer first
Order CNPC AlSi10Mg Powder for Metal 3D Printing | 20–63 µm LPBF – 10 kg / 22 lbs direct, or talk to materials engineer