Made to order
- COA on request — PSD, sphericity, flow rate, chemistry
- Mutual NDA before any file or spec review
A-Powder 17-4PH Powder for Metal 3D Printing | 15–53 µm LPBF – 10 kg / 22 lbs
A-Powder 17-4PH Stainless Steel powder price: $360 per 10 kg ($36.00/kg)
A-Powder 17-4PH — AO Metal’s LPBF powder line, 15–53 µm, in 10 kg containers.
- Lot certificate of analysis (COA)
Brand: A-Powder by AO Metal
What your materials team actually checks
Lot-certified & heat-treatable
Certificate of Analysis available on request — PSD, chemistry, apparent density and flow rate. 17-4PH reaches peak strength via H900–H1150 aging; we include post-print heat-treatment guidance for your target properties.
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.
A-Powder by AO Metal · 17-4PH
A-Powder 17-4PH is a precipitation-hardening stainless steel powder: print the part, then age it in one low-temperature step to the strength and toughness your drawing calls for.
17-4PH powder in brief
- Hardens after printing — a single ageing treatment sets the strength–toughness balance.
- Stronger than 316L — with good general corrosion resistance.
- Nitrogen-atomized — read the note below if your spec calls for argon-atomized 17-4.
About A-Powder. A-Powder is AO Metal’s own line of LPBF metal powders, produced in China under an ISO 9001 quality system. Additive Plus sells and supports it in the US — you order and pay here, and our materials engineer answers your questions.
Composition
| Iron (Fe) | Balance |
| Chromium (Cr) | 15.5–17.5% |
| Nickel (Ni) | 3.0–5.0% |
| Copper (Cu) | 3.0–5.0% |
| Niobium (Nb) | 0.15–0.45% |
Main alloying elements; the full chemistry of your lot is on its certificate of analysis.
Mechanical data
| Tensile strength, Z | ≥ 977 MPa |
| Yield strength, Z | ≥ 564 MPa |
| Elongation, Z | ≥ 26% |
| Porosity | 0.021% |
| Test condition | As built, 25 °C |
| Relative density | 99.97% |
Mechanical figures published by the manufacturer for this grade, as built in the XY and Z orientations. Treat them as a starting point for your own qualification, not a guaranteed result on your machine.
Technical data
| Material | 17-4PH stainless steel |
| Designation | UNS S17400 · AISI 630 · 1.4542 |
| Specification | AMS 7012 |
| Particle size (PSD) | 15–53 µm |
| Size distribution | D10 10–25 µm · D50 25–40 µm · D90 40–60 µm |
| Flow rate (Hall) | ≤ 20 s / 50 g |
| Apparent density | ≥ 3.5 g/cm³ |
| Tap density | ≥ 4.0 g/cm³ |
| Sphericity | ≥ 80% |
| Atomization | Nitrogen gas-atomized |
| Brand | A-Powder by AO Metal |
| Country of origin | China |
| Package | 10 kg sealed container |
| Certificate | Lot certificate of analysis (COA) |
Typical parts
- Tooling — inserts, cores and wear parts.
- Pumps and valves — impellers, housings and stems.
- Structural brackets — high-strength stainless hardware.
Representative LPBF parts in this alloy family.
Ordering A-Powder 17-4PH
- Made to order — we confirm the ship date by email after you order; if it does not suit you, we cancel and refund in full.
- One 10 kg sealed container per unit, 15–53 µm, with the certificate of analysis for the lot.
- 100 kg and more — ask for a volume quote.
- Card, PayPal or PO; a tax-exempt certificate is accepted.
Add to cart — $360 Request a volume quote
Good to know before you order
This 17-4PH is nitrogen-atomized.
A-Powder does not offer argon-atomized 17-4PH at this time. Nitrogen-atomized 17-4PH can retain more austenite as-built, so plan your heat treatment accordingly. If your drawing or qualification calls for argon-atomized (“17-4 AR”) powder, talk to our materials engineer before ordering.
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.
Questions about A-Powder 17-4PH
What is A-Powder?
AO Metal’s own brand of LPBF metal powders, produced in China under an ISO 9001 quality system and sold and supported in the US by Additive Plus.
How is it packed and documented?
In a sealed 10 kg container, with the certificate of analysis for the lot — chemistry and particle-size data.
Will it run on my printer?
It is a 15–53 µm cut for open LPBF systems with 17-4PH parameters. Our materials engineer shares recommended starting parameters that you tune on your machine.
Can I order 100 kg or more?
Yes — request a volume quote and we reply with pricing and timing for your quantity.
| Brand | AO Metal |
| Technology | Metal LPBF |
| Powder Package | 10 kg bottle |
| PSD (particle size distribution) | 15–53 micrometres |
| Printing Materials | Metal Powders |
| Material | 17-4PH |
| Country of origin | China |
| Production Method | Nitrogen Gas Atomized |
| 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
A-Powder 316L — AO Metal’s LPBF powder line, 15–53 µm, in 10 kg containers.
- Lot certificate of analysis (COA)
Brand: A-Powder by AO Metal
Other alloys in US stock now
Premium-grade LPBF powders, COA on request — add to cart or request a formal quote.
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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 A-Powder 17-4PH Powder for Metal 3D Printing | 15–53 µm LPBF – 10 kg / 22 lbs direct, or talk to materials engineer
