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- Full lot COA — PSD, sphericity, flow rate, chemistry
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Materials, Iron Base, LPBF (DMLS) 3D Printing Materials, Metal Powders 3D Printing Materials · Metal LPBF
304 Stainless Steel Powder for Metal 3D Printing | LPBF Compatible - 10 kg / 22 lbs
Versatile. Weldable. Cost-effective. Genuine Carpenter PowderRange® 304 / 304L austenitic stainless steel for LPBF & EBM metal 3D printing.
- ✓ Gas-atomized, low-oxygen — 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
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.
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® 304 / 304L is the most widely used chromium-nickel austenitic stainless steel, supplied as a low-carbon powder for laser powder bed fusion (LPBF) and EBM. It combines a high strength-to-weight ratio, good corrosion resistance and outstanding fabricability and weldability — a dependable, cost-effective stainless for general-purpose and corrosion-exposed parts.
It is non-magnetic in the annealed condition (becoming slightly magnetic when cold-worked) and is not hardenable by heat treatment.
Why teams buy this powder from Additive Plus
- Genuine Carpenter PowderRange® 304 — 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 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
- Equivalents / alternate names: UNS S30403 (304L) / S30400 (304) · AISI 304 / 304L · 1.4301 / 1.4307
- Machine type: F — LPBF · also E — EBM · Particle size: 15–45 µm · Bottle: 10 kg / 22 lbs
- 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.)
Chemical composition
Typical chemistry (wt%), per the Carpenter PowderRange® datasheet:
| Element | Content | Element | Content |
|---|---|---|---|
| Iron (Fe) | Balance | Manganese (Mn) | ≤ 2.00% |
| Chromium (Cr) | 18.00–20.00% | Silicon (Si) | ≤ 1.00% |
| Nickel (Ni) | 8.00–11.00% | Molybdenum (Mo) | ≤ 0.75% |
| Copper (Cu) | ≤ 0.75% | Carbon (C) | ≤ 0.030% |
| Phosphorus (P) | ≤ 0.040% | Sulfur (S) | ≤ 0.030% |
Heat treatment & processing
- 304 is not hardenable by heat treatment — strength comes from the as-built austenitic microstructure (and from cold work).
- Can be solution annealed to relieve stress and restore corrosion resistance.
- Excellent fabricability and weldability — one of the easiest stainless grades to print and post-process.
- Non-magnetic when annealed; becomes slightly magnetic after cold working.
Key performance benefits
- High strength-to-weight ratio
- Good corrosion resistance
- High toughness and ductility
- Excellent weldability and fabricability
- Non-magnetic (annealed), cost-effective stainless
Typical applications
- Medical devices
- Chemical-processing equipment
- Water and boiler components
- Valves, fittings and general industrial parts
Parts printed in 304
Material comparison: 304 vs 316L vs 17-4PH
| Feature | 304 | 316L | 17-4PH |
|---|---|---|---|
| Stainless steel type | Austenitic | Austenitic (Mo-bearing) | Martensitic, precipitation-hardening |
| AM process | LPBF / EBM | LPBF / EBM / DED | LPBF |
| Strength & hardness | Moderate | Moderate | High |
| Corrosion resistance | Good | Excellent (incl. chloride/pitting) | Good |
| Heat treatable | No (solution anneal only) | No (solution anneal only) | Yes (aging) |
| Magnetic | No (annealed) | No | Yes |
| Weldability | Excellent | Excellent | Good |
| Typical use case | General-purpose stainless | Corrosion-critical, medical | Strong structural parts, tooling |
| 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 | SS304 |
| Country of origin | USA |
| Production Method | Nitrogen Gas Atomized |
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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Corrosion-resistant. Biocompatible. Production-ready. Genuine Carpenter PowderRange® 316L austenitic stainless steel for LPBF, EBM & DED metal 3D printing.
- ✓ Gas-atomized, low-oxygen — full COA on every lot
- ✓ Sold in small, workable volumes — no large mill minimums
- ✓ Fast dispatch from Los Angeles
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Wrought-equivalent strength. Heat-treatable. Predictable. Genuine Carpenter PowderRange® 17-4 AR precipitation-hardening stainless steel for LPBF metal 3D printing.
- ✓ Lower-nitrogen chemistry — full martensite, full 17-4 performance
- ✓ Sold in small, workable volumes — no large mill minimums
- ✓ Full COA on every lot · fast dispatch from L.A.
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· 2 Business DaysFrom process engineers running 304 Stainless Steel Powder for Metal 3D Printing | LPBF Compatible - 10 kg / 22 lbs
Unedited feedback from customers who reorder 304 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 304 stainless steel powder?
304 is a chromium-nickel austenitic stainless steel powder commonly used in metal additive manufacturing. It offers good corrosion resistance, excellent weldability, and stable mechanical properties.
Which additive manufacturing processes are compatible with 304 powder?
PowderRange® 304 is compatible with:
Laser Powder Bed Fusion (LPBF) and Electron Beam Melting (EBM)
Laser Powder Bed Fusion (LPBF) and Electron Beam Melting (EBM)
Can 304 stainless steel be heat treated for increased strength?
No. 304 stainless steel is not hardenable by heat treatment. Its mechanical properties remain stable after printing, simplifying post-processing.
Is 304 stainless steel magnetic?
304 is non-magnetic in the annealed condition but may become slightly magnetic after cold working.
What industries commonly use 304 stainless steel powder?
It is widely used in automotive, industrial manufacturing, and medical industries.
What types of parts are typically produced using 304 powder?
Common applications include medical devices, chemical processing equipment, and components for water and boiler systems.
Is 304 stainless steel easy to weld and post-process?
Yes. 304 offers excellent weldability and fabricability and supports machining, polishing, and standard surface finishing methods.
Why choose 304 over other stainless steels?
304 is often selected for its balance of corrosion resistance, ease of fabrication, and cost-effectiveness when extreme strength or high-temperature performance is not required.
Place your order, or talk to an engineer first
Order 304 Stainless Steel Powder for Metal 3D Printing | LPBF Compatible - 10 kg / 22 lbs direct, or talk to materials engineer