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In every order
- Full lot COA — PSD, sphericity, flow rate, chemistry
- Qualified parameter sets for the major LPBF systems
- Mutual NDA before any file or spec review
- Free U.S. shipping over $200 · fast dispatch from L.A.
Materials, Iron Base, LPBF (DMLS) 3D Printing Materials, Metal Powders 3D Printing Materials · Metal LPBF
17-4PH Stainless Steel Powder for Metal 3D Printing | LPBF Compatible - 10 kg / 22 lbs
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 — full COA on every lot
- ✓ Sold in small, workable volumes — no large mill minimums
- ✓ Fast dispatch from Los Angeles
NDA standard
Ships in 1–2 business days
Spec-match guarantee on every lot
Built for production teams
What your process engineer actually checks
Locked, traceable lot chemistry
Every lot ships with a COA documenting PSD, sphericity, flow rate, apparent density, and full chemistry — and a lot number you can trace. Aerospace and medical teams reorder 4+ times without re-qualifying.
Qualified parameters, not just powder
Validated parameter sets for EOS M 290, Renishaw 500Q, SLM 280, and our own AO Metal LPBF ship with the order. Load the profile and hit density on the first build — no parameter-development burn.
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. Most replies in under 4 hours, NDA standard.
About this product
PowderRange® 17-4PH is a martensitic, precipitation-hardening stainless steel powder for laser powder bed fusion (LPBF). It pairs high strength and hardness with good corrosion resistance and reliable performance up to 600°F (316°C) — and unlike most stainless grades, it can be age-hardened in a single, low-temperature step, so you can dial in the exact strength-to-toughness balance your part needs.
It is one of the most widely qualified alloys in metal additive manufacturing, used for functional production parts, rapid tooling, and corrosion-resistant components across aerospace, medical, energy, and industrial markets.
Why teams buy this powder from Additive Plus
- Genuine Carpenter PowderRange® 17-4 — vacuum-induction melted and nitrogen gas-atomized for tight, repeatable chemistry and high sphericity.
- Available in small, workable volumes. Most mills sell large minimums and hide pricing behind an account. We stock this alloy and sell it in accessible quantities at a clear, published price.
- Full COA with every lot — particle size distribution, chemistry, apparent density and flow rate, with a traceable lot number.
- Fast dispatch from Los Angeles.
- 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.
Standards & equivalents
- Applicable specification: ASTM A564 / A564M
- Equivalents: UNS S17400 · AMS 5643 · ASME SA564 · AISI 630 · DIN 1.4542 / 1.4548
- Machine type: F — LPBF · Particle size: 15–45 µm · Bottle: 10 kg / 22 lbs
- Quality: manufactured by Carpenter Additive under AS9100, AS9120, ISO 9001 & ISO 13485 quality systems — certifications that apply to this powder.
Chemical composition
Typical chemistry (wt%), per the Carpenter PowderRange® datasheet:
| Element | Content | Element | Content |
|---|---|---|---|
| Iron (Fe) | Balance | Manganese (Mn) | ≤ 1.00% |
| Chromium (Cr) | 15.00–17.50% | Silicon (Si) | ≤ 1.00% |
| Nickel (Ni) | 3.00–5.00% | Carbon (C) | ≤ 0.07% |
| Copper (Cu) | 3.00–5.00% | Nitrogen (N) | ≤ 0.10% |
| Niobium + Tantalum | 0.15–0.45% | Phosphorus (P) | ≤ 0.040% |
| Oxygen (O) | ≤ 0.10% | Sulfur (S) | ≤ 0.030% |
Heat treatment & process guidance
17-4PH is forgiving to print and simple to post-process. Carpenter’s recommended routes:
- As-built: mean density >99.9% is achievable on commercial LPBF systems with 20–60 µm layers and specific energy of at least 50 J/mm³.
- Stress relief: 1250°F (677°C), about 1 hour per inch of thickness.
- Homogenization: 2000°F (1093°C) for 1 hour, air cool — minimizes anisotropy (not needed if HIP’d).
- HIP (optional, for full density): about 2087°F (1141°C) at no less than 14.5 ksi (100 MPa) for ~4 hours under argon.
- Solution anneal + age (H900): solution anneal 1900°F (1038°C), then age 900°F (482°C) for 1 hour and air cool, per ASTM A564/A564M.
Note: PowderRange 17-4 runs slightly higher in nitrogen, so full martensite transformation may not occur on heat treatment. If you need cast/wrought-equivalent properties, ask us about 17-4 AR.
Key performance benefits
- Good strength, toughness, hardness, and ductility
- Excellent response to precipitation (age) hardening
- Good corrosion resistance in industrial environments
- Stable mechanical properties up to 600°F (316°C)
- Well suited for functional parts and tooling
Typical applications
- Surgical instruments and medical tools
- Valves and fittings
- Pumps and impellers
- Manifolds
- Industrial and chemical processing equipment
- Tooling and fixtures
Parts printed in 17-4PH
Corrosion resistance
Comparative guidance only, derived from wrought product. Printed parts can behave differently, so always test for your environment.
| Environment | Rating | Environment | Rating |
|---|---|---|---|
| Humidity | Excellent | Salt spray (NaCl) | Good |
| Nitric acid | Good | Acetic acid | Moderate |
| Sodium hydroxide | Moderate | Sulfuric acid | Restricted |
| Phosphoric acid | Restricted | Sea water | Restricted |
| Sour oil / gas | Restricted |
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 |
| AM process | LPBF | LPBF | LPBF / EBM / DED |
| Strength & hardness | High | High | Moderate |
| Ductility & toughness | Good | Good | Very good |
| Corrosion resistance | Good | Good | Excellent |
| Max operating temperature | Up to 600°F (316°C) | Up to 600°F (316°C) | Lower, application-dependent |
| Heat treatable | Yes (single-step aging) | Yes (aging) | No (solution anneal only) |
| Weldability | Good | Good | Excellent |
| Magnetic | Yes | Yes | No |
| Typical use case | Tooling, functional parts, prototyping | Production structural parts | Corrosion-critical parts |
| Ease of post-processing | High | High | Very high |
| Brand | Carpenter Additive |
| Technology | Metal LPBF |
| Powder Package | 10 kg bottle, 440 kg hopper, 840 kg hopper |
| PSD (particle size distribution) | 15–45 micrometres |
| Printing Materials | Metal Powders |
| Material | 17-4PH |
| Country of origin | USA |
| Production Method | Nitrogen Gas Atomized, Vacuum Induction Melted |
Full documentation — TDS, SDS, batch COA, and parameter sets for the major LPBF platforms. Everything you need for qualification under AS9100 / ISO 13485 workflows.
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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- ✓ Sold in small, workable volumes — no large mill minimums
- ✓ Fast dispatch from Los Angeles
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· 2 Business DaysFrom process engineers running 17-4PH Stainless Steel Powder for Metal 3D Printing | LPBF Compatible - 10 kg / 22 lbs
Unedited feedback from customers who reorder 17-4PH 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 17-4PH stainless steel powder?
17-4PH is a martensitic, precipitation-hardening stainless steel powder used in metal additive manufacturing. It offers high strength, hardness, and good corrosion resistance.
What applications is 17-4PH best suited for?
It is commonly used for tooling, valves, pumps, manifolds, medical instruments, and industrial components requiring high strength and corrosion resistance.
What additive manufacturing process is supported?
PowderRange® 17-4PH is optimized for LPBF (Laser Powder Bed Fusion) systems.
Can 17-4PH be heat treated after 3D printing?
Yes. 17-4PH can be age-hardened using a simple, single-step low-temperature heat treatment to achieve specific strength and toughness levels.
What quantity do you sell — can I order a small amount?
Yes. This is a stocked Carpenter PowderRange® alloy and we sell it in accessible quantities — a 10 kg bottle as standard, with 440 kg and 840 kg hopper sizes available for production runs. Most mills require large minimums and hide pricing behind an account; we keep it simple with a clear, published price and small-lot availability. Need a different volume? Just ask.
Do you provide a Certificate of Analysis (COA)?
Every lot ships with a full COA — particle size distribution, chemistry, apparent density and flow rate — plus a traceable lot number, so you can qualify once and reorder the same material with confidence.
Place your order, or talk to an engineer first
Order 17-4PH Stainless Steel Powder for Metal 3D Printing | LPBF Compatible - 10 kg / 22 lbs direct, or talk to materials engineer