Made to order
- COA on request — PSD, sphericity, flow rate, chemistry
- Mutual NDA before any file or spec review
A-Powder 17-4PH Stainless Steel Powder for LPBF — 15–53 µm, 10 kg
A-Powder 17-4PH Stainless Steel powder price: $360 per 10 kg ($36.00/kg)
Precipitation-hardening martensitic stainless steel with high strength and toughness, good corrosion resistance and good weldability. A-Powder is AO Metal's own powder brand, produced in China and sold and supported in the US by Additive Plus.
Values from the manufacturer data for A-Powder 17-4PH. Catalog figures are minimums or ranges; the certificate for your lot is available on request.
Which precipitation-hardening stainless steel is right for your build?
All of them are in our catalog at a published price. Pick by machine, timing and country of origin.
| Powder | Particle size | Origin | Availability | Good fit for | 10 kg | |
|---|---|---|---|---|---|---|
 Carpenter Additive 17-4 ARArgon-atomized | 15–45 µm · LPBF | Confirmed per lot | Out of stock | Full martensite and ASTM A564 H900 strength after heat treatment | $695 | View |
 Carpenter Additive 17-4Nitrogen-atomized | 15–45 µm · LPBF | Confirmed per lot | Out of stock | General-purpose 17-4 for tooling and functional parts | $545 | View |
 Carpenter Additive 15-5PHHigher strength | 15–45 µm · LPBF | Confirmed per lot | In stock | Higher strength and hardness than 17-4 (Carpenter data) | $570 | View |
 CNPC Powder 17-4PHNamed manufacturer | 15–53 µm · LPBF | China | Made to order | Lower price per kg | $385 | View |
 A-Powder 17-4PHThis page | 15–53 µm · LPBF | China | Made to order | Lowest price per kg in our catalog | $360 | Add to cart |
Need a specific country of origin for a government or defense program? Ask before ordering and we will confirm it in writing for your lot.
What is in the container
Specification from the manufacturer. The certificate for your lot is available on request.
Specification
Chemistry, manufacturer data for A-Powder 17-4PH (wt%). The certificate for your lot lists all measured elements.
| Element | wt% |
|---|---|
| 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 |
| Powder property | Requirement |
|---|---|
| D10 / D50 / D90 | 10–25 / 25–40 / 40–60 µm |
| Hall flow | ≤ 20 s / 50 g |
| Apparent / tap density | ≥ 3.5 / ≥ 4.0 g/cm³ |
| Sphericity | ≥ 80% |
What comes with your lot
From the manufacturer certificate
- Chemistry against the specification limits on the left
- Particle size distribution: D10, D50, D90
- Flow rate and apparent density
- Lot number for traceability
The certificate for your lot is available on request. The manufacturer datasheet for this alloy has no particle image; ask us if you need one.
How the printed metal performs
Printed-property minimums from the manufacturer data for A-Powder 17-4PH. A guide for your own qualification, not design data.
| Condition | Orientation | Yield, MPa | UTS, MPa | Elongation | Rel. density | Hardness, HV1 |
|---|---|---|---|---|---|---|
| As-built | X–Y | ≥ 784 | ≥ 1015 | ≥ 24% | 99.97% | 298 |
| Z | ≥ 564 | ≥ 977 | ≥ 26% | — | 298 |
Heat treatment
Manufacturer data
- The catalog lists as-built values only.
- Nitrogen gas atomized (confirmed by the manufacturer); nitrogen-atomized 17-4 may not transform fully to martensite in heat treatment, so qualify your aging cycle on coupons.
- Use the solution and aging cycle your specification calls for, for example per ASTM A564.
Before you order
Ship date: confirmed by email after you order. If it does not work for you, we cancel the order and refund it in full.
How this 17-4 compares
Published tensile data, X–Y direction unless noted, one representative condition per alloy. Conditions differ, so use this to shortlist, not to design.
| Alloy | Condition | Yield, MPa | UTS, MPa | Elongation | Choose it for | 10 kg |
|---|---|---|---|---|---|---|
| 17-4 | (manufacturer data) | ≥ 564 | ≥ 977 | ≥ 26% | Lowest price per kg | $360 |
| 17-4 AR | Solution (Sol) | 1209 | 1342 | 17% | Full martensite; meets ASTM A564 H900 minimums | $695 |
| 15-5PH | Solution + H900 | 1296 | 1448 | 13.9% | Highest strength of the PH stainless steels; corrosion resistance to 316 °C | $570 |
Will it run on my printer?
Runs on open-parameter laser powder bed fusion systems with 17-4PH parameters. Our materials engineer shares recommended starting parameters that you tune on your machine.
AO MetalA30 · A50 · A100Benchtop to production LPBF with open parameters. Ask our materials engineer for starting parameters.From $59,000 · A30See AO Metal printers →
FarsoonMetal LPBF lineOpen-platform LPBF from compact R&D frames to 16-laser production systems.FS121M · FS191M · FS200M · FS273M · FS301M · FS350M · FS422M · FS621M · FS721M · FS812M · FS1311M · FS1521MQuote on requestSee Farsoon metal printers →Machine names identify compatible equipment only. Additive Plus is not affiliated with these manufacturers, and the powder is not approved by them. Process parameters are tuned per machine.
Store sealed
Keep the container closed, dry and at room temperature until you load the printer.
Sieve
Sieve before loading and every time you reuse powder recovered from a build.
ATO Sieve · quoteLoad and purge
Fill the dispenser, close the chamber and purge with argon or nitrogen.
Print and relieve
Stress-relieve on the plate, then remove parts and supports.
Recover
Collect unfused powder, sieve it and return it to a sealed container.
Delfin Mistral 451 BL D2 — ATEX metal powder vacuum · $7,175Wear a respirator, gloves and eye protection when handling metal powder. Read the safety data sheet before first use.
Printed on AO Metal
Real builds on the LPBF printers we sell, and what teams make from this alloy.
Parts printed on AO Metal printers, which we sell. Alloys, parameters and powder lots differ from part to part; these photos show the process, not parts made from this specific powder lot.
- Tooling
- Valves and pumps
- Industrial parts
Applications as listed in the manufacturer data for A-Powder 17-4PH.
Ordering, delivery and our promise
A sealed 10 kg container of 15–53 µm powder, with the certificate of analysis for the lot on request.
The ship date shows next to the Add to Cart button. Shipping cost is calculated at checkout.
Card or PayPal at checkout, an invoice, or a purchase order — choose how you buy next to Add to Cart.
100 kg and more: ask for a volume quote with your alloy, quantity and ship-to.
If the powder is not right, we make it right.
If your lot’s chemistry or particle size falls outside its certificate or this page, or it arrives damaged or wrong, tell us within 14 days of delivery. We replace it or refund you, and we pay for shipping both ways.
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%)
- ✓ Conductive / antistatic build — no static build-up around ignition-sensitive powder
- ✓ For stainless, nickel & non-reactive AM powder — reactive metals need the inert unit
- ✓ In US stock · ships in 2 business days · genuine Delfin unit · ATEX docs on request
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: 4–8 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.
Carpenter Additive · Made in Sweden316L Stainless Steel Powder for Metal 3D PrintingIn stock · ships in ~2 business days$670 / 10 kg · $67.00/kg
Carpenter Additive · Made in USA15-5 Stainless Steel Powder for Metal 3D PrintingIn stock · ships in ~2 business days$570 / 10 kg · $57.00/kg
Carpenter Additive · Made in USA304 Stainless Steel Powder for Metal 3D PrintingIn stock · ships in ~2 business days$545 / 10 kg · $54.50/kg
Carpenter Additive · Made in AustriaAluminum Alloy Powder AlSi10MgIn stock · ships in ~2 business days$815 / 10 kg · $81.50/kgCommon questions
Don't see yours? Email [email protected] — NDA on request.
What is A-Powder 17-4PH stainless steel powder?
What strength does printed 17-4PH stainless steel reach with this powder?
How is 17-4PH stainless steel heat treated after printing?
What particle size and flow does A-Powder 17-4PH stainless steel powder have?
Who makes A-Powder 17-4PH stainless steel powder?
How is A-Powder 17-4PH stainless steel powder different from PowderRange 17-4 AR, argon-atomized, from Carpenter Additive?
How do I order A-Powder 17-4PH stainless steel powder, and when does it ship?
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