Stainless Steel 17-4PH Spherical Powder (17-4PH)
Precipitation-hardening martensitic stainless steel spherical powder for LPBF surgical instruments, aerospace turbine components and electronics housings. Small quantities, prototypes and custom made-to-order specifications are welcome.
15–53 µmParticle Size Range
≥99.8% metallic p…Purity Grade
Custom Made-to-OrderGrade & Quantity
WorldwideExport Shipping
Stainless Steel 17-4PH Spherical Powder — Grades & Specifications
Precipitation-hardening martensitic stainless steel spherical powder for LPBF surgical instruments, aerospace turbine components and electronics housings. The options below are typical; specify your target values in the request form and we will confirm availability, lead time and pricing.
| Material | Stainless Steel 17-4PH Spherical Powder |
|---|---|
| Chemical formula | 17-4PH |
| CAS number | Alloy — no single CAS number (generic stainless-steel-powder family CAS 65997-19-5 covers multiple grades) |
| Particle size | 15–53 µm (LPBF); process cuts from ≤16µm (binder jetting) to 150µm (DED) |
| Purity | ≥99.8% metallic purity |
| Morphology | Spherical (gas-atomized) |
| Appearance | Gray metallic powder |
| Composition (wt%) | Cr 15.5–17.5%, Ni 3.0–5.0%, Cu 3.0–5.0%, Nb 0.15–0.45%, C ≤0.07%, Fe balance |
| Process-specific cuts | Binder jetting ≤16/22/32/38/45µm · LPBF 15–53 & 10–45µm · E-PBF 45–106µm · DED 53–150µm · MIM <5–38µm |
| Typical applications | Surgical instruments, Aerospace components, Electronics housings, Tooling |
Applications by Industry
Surgical instrumentsPrecision LPBF medical instrument components.
Aerospace componentsTurbine blades, valves and gears.
Electronics housingsPrecision precipitation-hardened housings.
ToolingWear- and corrosion-resistant tooling components.
Particle Size & Mesh Conversion
Reference for converting between US mesh and microns/millimetres. Figures are nominal sieve openings and may vary slightly by standard.
| Mesh (US) | Micron (µm) | mm | Inch | Remarks |
|---|---|---|---|---|
| 3 | 6730 | 6.730 | 0.2650 | |
| 4 | 4760 | 4.760 | 0.1870 | |
| 5 | 4000 | 4.000 | 0.1570 | |
| 6 | 3360 | 3.360 | 0.1320 | |
| 7 | 2830 | 2.830 | 0.1110 | |
| 8 | 2380 | 2.380 | 0.0937 | |
| 10 | 2000 | 2.000 | 0.0787 | |
| 12 | 1680 | 1.680 | 0.0661 | |
| 14 | 1410 | 1.410 | 0.0555 | |
| 16 | 1190 | 1.190 | 0.0469 | |
| 18 | 1000 | 1.000 | 0.0394 | |
| 20 | 841 | 0.841 | 0.0331 | |
| 25 | 707 | 0.707 | 0.0278 | |
| 30 | 595 | 0.595 | 0.0234 | |
| 35 | 500 | 0.500 | 0.0197 | |
| 40 | 420 | 0.420 | 0.0165 | |
| 45 | 354 | 0.354 | 0.0138 | |
| 50 | 297 | 0.297 | 0.0117 | |
| 60 | 250 | 0.250 | 0.0098 | |
| 70 | 210 | 0.210 | 0.0083 | |
| 80 | 177 | 0.177 | 0.0070 | |
| 100 | 149 | 0.149 | 0.0059 | |
| 120 | 125 | 0.125 | 0.0049 | |
| 140 | 105 | 0.105 | 0.0041 | |
| — | 100 | 0.100 | 0.0039 | Sand |
| 170 | 88 | 0.088 | 0.0035 | |
| 200 | 74 | 0.074 | 0.0029 | |
| — | 70 | 0.070 | 0.0027 | |
| 230 | 63 | 0.063 | 0.0024 | Human hair |
| — | 55 | 0.055 | 0.00217 | |
| 270 | 53 | 0.053 | 0.0021 | |
| — | 50 | 0.050 | 0.00197 | |
| 325 | 44 | 0.044 | 0.0017 | |
| — | 40 | 0.040 | 0.00157 | |
| 400 | 37 | 0.037 | 0.0015 | |
| 550 | 25 | 0.025 | 0.00099 | |
| 625 | 20 | 0.020 | 0.00079 | |
| 1200 | 12 | 0.012 | 0.0005 | |
| 1250 | 10 | 0.010 | 0.000394 | |
| — | 7 | 0.007 | 0.000276 | |
| 2500 | 5 | 0.005 | 0.000197 | |
| 4800 | 3 | 0.003 | 0.000118 | |
| 5000 | 2.5 | 0.0025 | 0.000099 | Bacteria (approx.) |
| 12000 | 1 | 0.001 | 0.0000394 |
Information Required for Quotation
- Grade / purity (e.g. ≥99.8% metallic purity)
- Particle size / target (µm, or mesh)
- Quantity
- Application environment
- Required delivery country
Lead time depends on grade, particle size, quantity and processing requirements. Export availability can be reviewed based on destination country and material type. A Certificate of Analysis can be provided on request.
Request a Quote or Custom Order
Tell us your grade, particle size and quantity. We typically reply within one business day.
Frequently Asked Questions
What purity / grade options are available for Stainless Steel 17-4PH Spherical Powder?
Stainless Steel 17-4PH Spherical Powder is offered in the grades listed on this page (≥99.8% metallic purity). Other grades can be reviewed on request depending on your application and quantity.
What particle sizes can you supply for Stainless Steel 17-4PH Spherical Powder?
The typical size range supplied is 15–53 µm (LPBF); process cuts from ≤16µm (binder jetting) to 150µm (DED). Please specify your target value in the request form and we will confirm availability.
Can Stainless Steel 17-4PH Spherical Powder be made to custom specifications?
Yes. Stainless Steel 17-4PH Spherical Powder can be produced to order — grade, particle size and packaging can be customized to your specification. Select “Custom Order” in the request form and provide your target values.
What is the minimum order quantity (MOQ)?
Order quantity is flexible and small quantities and prototype requests are welcome. Please state your required quantity in the form for an accurate quotation.
Can you export and ship Stainless Steel 17-4PH Spherical Powder internationally?
Yes, export inquiries are welcome. Availability and shipping are reviewed based on destination country, grade and quantity.
Do you provide a Certificate of Analysis (COA) or technical data?
A Certificate of Analysis and technical data can be provided on request for supplied lots.
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Request a Quote for Stainless Steel 17-4PH Spherical Powder
Send us your grade, particle size, quantity and application. We will review availability, quotation and lead time. Small quantities, prototypes and custom made-to-order specifications are welcome.