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- COA on request — PSD, sphericity, flow rate, chemistry
- Mutual NDA before any file or spec review
17-4 AR Stainless Steel Powder for LPBF — Argon-Atomized, 15–45 µm, 10 kg
Carpenter 17-4 AR Stainless Steel (Argon) powder price: $695 per 10 kg ($69.50/kg)
Argon-atomized 17-4 with nitrogen held to 0.030%, so it transforms fully to martensite and meets ASTM A564 H900 tensile minimums after heat treatment in Carpenter data. Vacuum-induction-melted by Carpenter Additive (PowderRange 17-4 AR).
* Carpenter data with 20–60 µm layers and specific energy ≥ 50 J/mm³; tensile X–Y in the Sol condition.
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 ARThis page | 15–45 µm · LPBF | Confirmed per lot | Out of stock | Full martensite and ASTM A564 H900 strength after heat treatment | $695 | Add to cart |
 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 17-4PHby AO Metal | 15–53 µm · LPBF | China | Made to order | Lowest price per kg in our catalog | $360 | View |
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
Type analysis, PowderRange 17-4 AR datasheet (Carpenter Additive). Single figures are nominal except where noted.
| Element | wt% |
|---|---|
| Iron (Fe) | Balance |
| Chromium (Cr) | 15.00–17.50 |
| Copper (Cu) | 3.00–5.00 |
| Nickel (Ni) | 3.00–5.00 |
| Manganese (Mn) | max 1.00 |
| Silicon (Si) | max 1.00 |
| Molybdenum (Mo) | max 0.50 |
| Niobium + tantalum | 0.15–0.45 |
| Cobalt (Co) | 0.40 |
| Oxygen (O) | max 0.10 |
| Carbon (C) | max 0.07 |
| Aluminum (Al) | max 0.05 |
| Phosphorus (P) | max 0.040 |
| Nitrogen (N) | max 0.030 |
| Sulfur (S) | max 0.030 |
| Tin (Sn) | max 0.02 |
| Powder property | Requirement |
|---|---|
| Above 53 µm | max 1 wt% (ASTM B214) |
| Below 15 µm | max 10 vol% (ASTM B822) |
| D10 / D50 / D90 | measured and reported on the lot certificate |
| Hall flow, apparent density | measured and reported (ASTM B213, B212) |
| Melting and atomization | Vacuum induction melted, argon gas atomized |
What the particles look like
From the manufacturer datasheet
SEM image of typical PowderRange 17-4 AR powder, from the Carpenter Additive datasheet; scale bar 100 µm.
Each order ships with the Carpenter Additive certificate of analysis for its lot: chemistry, particle size distribution (D10/D50/D90) and density. Ask us if you need to see a recent certificate before ordering.
How the printed metal performs
Room-temperature tensile data published by Carpenter Additive for PowderRange 17-4 AR: average of at least 5 samples per orientation and condition. A guide for your own qualification, not design data. Condition names as in the datasheet.
| Condition | Orientation | Yield, MPa | UTS, MPa | Elongation | Impact, J | HRC |
|---|---|---|---|---|---|---|
| As-built | X–Y | 758 | 1136 | 15% | 115 | 35 |
| Z | 747 | 1145 | 15% | 100 | 35 | |
| Sol | X–Y | 1209 | 1342 | 17% | 29 | 42 |
| Z | 1208 | 1343 | 15% | 23 | 42 | |
| HIP + Sol | X–Y | 1207 | 1338 | 18% | 30 | 42 |
| Z | 1207 | 1340 | 17% | 22 | 42 | |
| ASTM A564 Type 630 H900 minimum | all | 1170 | 1310 | 10% | — | 40 |
Heat treatment
Carpenter datasheet, process guidance
- Stress relief: 677 °C (1250 °F), 1 hour per inch of thickness, minimum 2 hours, up to 4 hours.
- Homogenize to reduce anisotropy: 1093 °C (2000 °F) for 1 hour, air cool. Not needed if you HIP.
- HIP to close porosity: at least 100 MPa (14.5 ksi) at about 1141 °C (2087 °F) for about 240 minutes in argon.
- Solution anneal per ASTM A564: 1038 °C (1900 °F) for 0.5 hour, cool below 32 °C (90 °F). Then age, for example H900: 482 °C (900 °F) for 1 hour, air cool.
- Carpenter advises against using the solution-annealed condition without aging, because of stress-corrosion cracking.
Corrosion, comparative rating
From wrought-alloy experience; test your printed parts
| Humidity | Excellent | Nitric acid | Good |
| Salt spray | Good | Acetic acid | Moderate |
| Sodium hydroxide | Moderate | Sea water | Restricted |
| Sulfuric acid | Restricted | Phosphoric acid | Restricted |
| Sour oil/gas | Restricted |
Specifications, equivalent names and how 17-4 AR compares
Specifications
From the manufacturer datasheet
| Applicable | Not listed on the datasheet |
| Associated | UNS S17400, AMS5643, ASME SA564, ASTM A564/A564M, ASTM A705, DIN 1.4548, DIN 1.4542, AISI 630 |
Equivalent names on LPBF machines
“Similar materials” in the datasheet; for parameter selection only, not machine-maker approvals
| Generic | 1.4542, 17-4 |
| 3D Systems | LaserForm 17-4 |
| GE (Concept Laser) | 17-4 |
| EOS | GP1 |
| Renishaw | Stainless Steel 17-4 |
| SLM Solutions | 17-4 (1.4542) |
How it 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 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 |
| 316L | As-built | 552 | 703 | 57% | Corrosion resistance; does not age-harden | $670 |
Will it run on my printer?
Carpenter states that PowderRange 17-4 AR is compatible with all commercially available laser powder bed fusion equipment. Ask our materials engineer for starting parameters for 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.
- Surgical instruments and tools
- Valves and fittings
- Pumps and impellers
- Manifolds
- Industrial and chemical processing equipment
- Tooling
Applications as listed by Carpenter Additive for PowderRange 17-4 AR.
Ordering, delivery and our promise
10 kg of 15–45 µm powder, sealed, traceable to its Carpenter lot certificate.
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
High strength. Heat-treatable. Production-ready. Genuine Carpenter PowderRange® 17-4PH precipitation-hardening stainless steel for LPBF metal 3D printing.
- ✓ Vacuum-melted, nitrogen gas-atomized — COA on request
- ✓ Sold in small, workable volumes — no large mill minimums
- ✓ Out of stock — next lot expected in November
Out of stock: the next Carpenter lot is expected in November.
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 PowderRange 17-4 AR stainless steel powder?
How is 17-4 AR different from standard 17-4PH powder?
How do I heat treat 17-4 AR after printing?
How corrosion-resistant is 17-4 AR stainless steel?
Does 17-4 AR stainless steel powder come with a certificate of analysis?
How fast does 17-4 AR stainless steel powder ship, and how can I pay?
Can I reuse unfused 17-4 AR stainless steel powder?
Place your order, or talk to an engineer first
Order 17-4 AR Stainless Steel Powder for Metal 3D Printing | LPBF Compatible - 10 kg / 22 lbs direct, or talk to materials engineer