17-4PH Stainless Steel Powder for Metal 3D Printing | LPBF Compatible - 10 kg / 22 lbs

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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
• Carpenter Part No.: 10049697
• 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:

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.

Material comparison: 17-4 AR vs 17-4PH vs 316L