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Materials, Iron Base, LPBF (DMLS) 3D Printing Materials, Metal Powders 3D Printing Materials · Metal LPBF
A-Powder SS316L Stainless Steel Powder for Metal 3D Printing | LPBF Compatible – 10 kg / 22 lbs
Corrosion-resistant. Biocompatible. Production-ready. Genuine AO Metal 316L austenitic stainless steel for LPBF metal 3D printing.
- ✓ Gas-atomized, low-oxygen — full COA per lot
- ✓ US-produced — workable volumes, no mill minimums
- ✓ Fast dispatch from Los Angeles
NDA standard
Ships in 1–2 business days
What your materials team actually checks
Lot-to-lot consistency
Every lot ships with a Certificate of Analysis — PSD, chemistry, apparent density and flow rate within spec. Full traceability for AS9100 and NADCAP workflows.
A materials engineer on the line
Qualification question? We've run these alloys in production on AO Metal — parameter sets available. Sub-4h reply, NDA standard. Use the Talk to materials engineer button above.
About this product
A-Powder 316L is a gas-atomized austenitic stainless steel for laser powder bed fusion (LPBF): excellent corrosion resistance, ductility and weldability — the same industrial AM quality at an accessible, published price, lot-certified for production.
Why engineers choose A-Powder 316L
Four things a materials team verifies before qualifying a powder.
Lot-certified consistency
Full Certificate of Analysis with every lot — PSD, chemistry, apparent density and flow rate, traceable lot number for AS9100 and NADCAP workflows.
Gas-atomized, low-oxygen
High sphericity and controlled oxygen for stable spreading and dense parts — nitrogen gas atomized, vacuum induction melted feedstock.
Workable volumes, no mill minimums
Order a 10 kg bottle or scale to 440/840 kg hoppers — no large mill minimums, custom cuts on request.
Fast US dispatch
Ships from Los Angeles in 5–10 business days. Need a tighter cut or an official purchase request? Just ask.
How we supply it
Every lot ships as a verified process, not a bag of powder — melted, atomized, tested, certified.
Step 01
Melted & atomized
Vacuum induction melted, nitrogen gas atomized for spherical, low-oxygen powder.
Step 02
Tested & certified
Every lot checked for PSD, chemistry, apparent density and flow — full COA with a traceable lot number.
Step 03
Dispatched from LA
Bottled or hoppered and shipped from Los Angeles in 5–10 business days.
Powder characteristics
| Property | Value |
|---|---|
| Alloy / grade | 316L austenitic stainless (UNS S31603 · 1.4404 · AISI 316L) |
| Reference specification | ASTM F3184 |
| Particle size (PSD) | 15–53 µm — LPBF cut (custom cuts available) |
| Production method | Nitrogen gas atomized · vacuum induction melted |
| Morphology | Spherical, high sphericity, low oxygen |
| Package | 10 kg bottle · 440 kg hopper · 840 kg hopper |
Chemical composition
| Element | Content | Element | Content |
|---|---|---|---|
| Iron (Fe) | Balance | Manganese (Mn) | ≤ 2.00% |
| Chromium (Cr) | 16.0–18.0% | Silicon (Si) | ≤ 1.00% |
| Nickel (Ni) | 10.0–14.0% | Nitrogen (N) | ≤ 0.10% |
| Molybdenum (Mo) | 2.00–3.00% | Carbon (C) | ≤ 0.030% |
| Phosphorus (P) | ≤ 0.045% | Sulfur (S) | ≤ 0.030% |
Heat treatment & processing
- 316L cannot be precipitation hardened — properties come from the as-built austenitic microstructure.
- Solution annealing is optional and application-specific; it can improve corrosion resistance.
- Excellent weldability; process under argon or nitrogen shielding gas.
Typical applications
Where teams run 316L printed parts.
Medical & instrumentation
Implants, surgical, dental
Valves, fittings & manifolds
Corrosion-critical flow parts
Pumps & impellers
Marine and process equipment
Chemical processing
Tanks, reactors, piping
Material comparison: 316L vs 304 vs 17-4PH
| Feature | 316L | 304 | 17-4PH |
|---|---|---|---|
| Type | Austenitic (Mo) | Austenitic | Martensitic PH |
| Corrosion resistance | Excellent (chloride/pitting) | Good | Good |
| Strength & hardness | Moderate | Moderate | High |
| Heat treatable | No | No | Yes (aging) |
| Magnetic | No | No | Yes |
| Typical use | Corrosion-critical, medical | General-purpose | Strong structural parts |
Not sure 316L is the right alloy for your part? Send your application and target properties — a materials engineer who has run these alloys in production on AO Metal will help you qualify it. Sub-4h reply, NDA standard.
Why source through Additive Plus
- Own A-Powder line — the same industrial AM-powder quality at an accessible, published price.
- Lot-certified — full COA per lot with PSD, chemistry, apparent density and flow.
- Workable volumes — 10 kg bottle to 440/840 kg hoppers, custom cuts on request.
- US-based support — fast dispatch from Los Angeles; sub-24h engineer response.
| Brand | AO Metal – High-Precision Metal 3D Printers for Innovation |
| Technology | Metal LPBF |
| Powder Package | 10 kg bottle, 440 kg hopper, 840 kg hopper |
| PSD (particle size distribution) | 15–53 micrometres |
| Printing Materials | Metal Powders |
| Material | 316L |
| Country of origin | USA |
| Production Method | Nitrogen Gas Atomized, Vacuum Induction Melted |
Don't see your spec?
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.
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From process engineers running A-Powder SS316L Stainless Steel Powder for Metal 3D Printing | LPBF Compatible – 10 kg / 22 lbs
Unedited feedback from customers who reorder A-Powder SS316L Stainless Steel Powder for Metal 3D Printing | LPBF Compatible – 10 kg / 22 lbs.
★★★★★
Same lot 4 times in a row. We stopped re-running parameter sweeps after the second order — density was identical to the first build.
MK
Marcus K.
Process Engineer · Aerospace OEM
★★★★★
Asked about ferrite content on a Friday. A materials engineer answered Monday morning with actual data, not a sales pitch. That's why we keep ordering.
PS
Priya S.
R&D Lead · Medical Devices
★★★★★
COA matches the bottle. PSD and flow are exactly what was on the sheet — we run it on a Renishaw 500Q and it hits density on the first try.
DR
Diego R.
Production Lead · Energy
Common questions
Don't see yours? Email [email protected] — NDA standard, typical reply within 4 hours.
What is SS316L Powder?
SS316L is an austenitic stainless steel powder engineered for LPBF additive manufacturing. It combines high strength, corrosion resistance, and reproducible mechanical performance for critical end-use components.
Which additive manufacturing processes are compatible?
Optimized for LPBF, and compatible with EBM and DED. Spherical particles (15–53 µm) and low oxygen content ensure smooth recoating, minimal spatter, and predictable layer fusion.
Can printed parts be heat treated?
Yes, post-processing heat treatment enhances mechanical properties, achieving UTS 590 MPa, yield 380 MPa, and elongation 60 %.
What industries commonly use SS316L powder?
Aerospace, Medical & Dental, Automotive & Transportation, and Industrial Machinery.
Why choose A-Powder SS316L?
Manufactured by AO Metal with small-batch flexibility, high-quality control, rapid delivery, and full traceable documentation, ensuring reliable, production-ready LPBF performance.
How does 316L perform in corrosive environments? in standard industrial 3D printers?
316L provides good resistance to general and intergranular corrosion, making it suitable for use in humid, chemically aggressive, and industrial environments.
Can I order a smaller quantity or a custom particle size?
Yes. We sell in small, workable volumes with no large mill minimums, and we can supply custom particle-size cuts or quantities on request - just ask us for a quote.
Place your order, or talk to an engineer first
Order A-Powder SS316L Stainless Steel Powder for Metal 3D Printing | LPBF Compatible – 10 kg / 22 lbs direct, or talk to materials engineer