Coming soon · pre-order
- COA on request — PSD, sphericity, flow rate, chemistry
- Mutual NDA before any file or spec review
17-4 AR Stainless Steel Powder for Metal 3D Printing | LPBF Compatible - 10 kg / 22 lbs
Carpenter 17-4 AR Stainless Steel (Argon) powder price: $695 per 10 kg ($69.50/kg)
- ✓ Lower-nitrogen chemistry — full martensite, full 17-4 performance
- ✓ Sold in small, workable volumes — no large mill minimums
- ✓ COA on request
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.
PowderRange® 17-4 AR is the wrought-equivalent grade of 17-4 precipitation-hardening stainless steel for laser powder bed fusion (LPBF). Its controlled, lower-nitrogen chemistry lets the alloy fully transform to martensite during standard heat treatment, delivering cast/wrought-equivalent strength and hardness — the grade to choose when you need full 17-4PH mechanical performance from additive manufacturing.
It keeps the high strength, hardness and corrosion resistance of 17-4 (up to 600°F / 316°C) and age-hardens in a single, low-temperature step.
Why teams buy this powder from Additive Plus
- Genuine Carpenter PowderRange® 17-4 AR — gas-atomized for high sphericity, low oxygen and consistent flow.
- Available in small, workable volumes. Most mills sell large minimums and hide pricing behind an account. We sell this alloy in accessible quantities at a clear, published price.
- COA on request — particle size distribution, chemistry, apparent density and flow rate, with a traceable lot number.
- Currently on backorder — we confirm the ship date when you order.
- Need a custom alloy or a tighter cut? We also run our own atomization in-house and can produce custom small-batch powder on request — separate from this stocked product.
What teams print with 17-4 AR
Representative LPBF parts across aerospace, energy, medical and industrial applications.
Standards & equivalents
- Applicable specification: ASTM A564
- Equivalents / alternate names: 17-4PH · UNS S17400 · 1.4542 · AISI 630 · LaserForm 17-4PH · GP1
- Machine type: F — LPBF · Particle size: 15–45 µm · Bottle: 10 kg / 22 lbs
- Carpenter Part No.: 10049584
- Quality: manufactured by Carpenter Additive under AS9100, AS9120, ISO 9001 & ISO 13485 quality systems. (These certifications are Carpenter’s, covering the powder; Additive Plus resells genuine, fully traceable lots and is not itself a certified manufacturer.)
17-4 AR vs standard 17-4PH
Standard 17-4 (PowderRange 17-4) runs higher in nitrogen, so it may not fully transform to martensite on heat treatment — giving slightly lower mechanical properties. 17-4 AR uses a lower-nitrogen chemistry that fully transforms, so heat-treated parts reach cast/wrought-equivalent properties. Choose AR when you need maximum, predictable strength; choose standard 17-4 when cost is the priority and PH-level properties are sufficient.
Chemical composition
Typical chemistry (wt%), per the Carpenter PowderRange® datasheet. Note the lower nitrogen vs standard 17-4PH:
| Element | Content | Element | Content |
|---|---|---|---|
| Iron (Fe) | Balance | Manganese (Mn) | ≤ 1.00% |
| Chromium (Cr) | 15.00–17.50% | Silicon (Si) | ≤ 1.00% |
| Copper (Cu) | 3.00–5.00% | Molybdenum (Mo) | ≤ 0.50% |
| Nickel (Ni) | 3.00–5.00% | Cobalt (Co) | ≤ 0.40% |
| Niobium + Tantalum | 0.15–0.45% | Carbon (C) | ≤ 0.07% |
| Nitrogen (N) | ≤ 0.030% | Aluminum (Al) | ≤ 0.05% |
| Oxygen (O) | ≤ 0.10% | Phosphorus (P) | ≤ 0.040% |
| Sulfur (S) | ≤ 0.030% |
Heat treatment & processing
- Age-hardenable in a single, low-temperature step (e.g. H900 and up) to tune strength vs. toughness.
- Fully transforms to martensite on standard solution anneal + age, reaching wrought-equivalent mechanicals.
- Good fabricating characteristics and machinability in solution-treated and aged conditions.
Key performance benefits
- Cast/wrought-equivalent strength and hardness after heat treatment
- Excellent response to precipitation (age) hardening
- Good corrosion resistance, stable up to 600°F (316°C)
- High strength, toughness, hardness and ductility
- Well suited for demanding functional parts and tooling
Typical applications
- Surgical instruments and tools
- Valves and fittings
- Pumps and impellers
- Manifolds
- Industrial and chemical-processing equipment
- Tooling
Parts printed in 17-4 AR
Material comparison: 17-4 AR vs 17-4PH vs 316L
| Feature | 17-4 AR | 17-4PH | 316L |
|---|---|---|---|
| Stainless steel type | Martensitic, precipitation-hardening | Martensitic, precipitation-hardening | Austenitic |
| Nitrogen / transformation | Lower N, full martensite | Higher N, partial | n/a |
| Heat-treated properties | Cast/wrought-equivalent | Slightly lower | n/a (no age hardening) |
| Strength & hardness | High | High | Moderate |
| Corrosion resistance | Good | Good | Excellent |
| Magnetic | Yes | Yes | No |
| Typical use case | Max, predictable strength | Cost-effective strong parts | Corrosion-critical, medical |
Compatible 3D printing systems
Open-parameter LPBF / DMLS platforms this powder runs on.
| Brand | Carpenter Additive |
| Technology | Metal LPBF |
| Powder Package | 10 kg bottle |
| PSD (particle size distribution) | 15–45 micrometres |
| Printing Materials | Metal Powders |
| Material | 17-4AR |
| Country of origin | USA |
| Production Method | Argon Gas Atomized, Vacuum Induction Melted |
| Application | Engineering, 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
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
- ✓ On backorder — ship date confirmed when you order
On backorder: the next Carpenter lot is expected in late November — we confirm the ship date when you order.
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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Carpenter Additive · Made in USAAluminum Alloy Powder AlSi10MgIn stock · ships in ~2 business days$815 / 10 kg · $81.50/kgCommon questions
Don't see yours? Email [email protected] — NDA standard, typical reply within 4 hours.
What is PowderRange® 17-4 AR stainless steel powder?
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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
