Stainless Steel 316L Powder
Austenitic stainless steel powder optimized for additive manufacturing, metal injection molding (MIM), and powder metallurgy. Produced via vacuum induction melting inert gas atomization (VIGA), our powder offers high sphericity, excellent corrosion resistance, and consistent batch-to-batch flowability. Each production lot is supplied with a certified Material Test Report (MTR).
Key Features
High Sphericity: Gas-atomized morphology (>95% sphericity) ensures smooth powder spreading and optimal packing density in laser powder bed fusion (L-PBF) systems.
Corrosion Resistance: Balanced chromium, nickel, and molybdenum chemistry provides strong resistance to pitting and chloride-induced corrosion in marine and chemical environments.
Controlled PSD: Particle size distributions tailored for specific layer thicknesses and printing platforms (e.g., 15-45 um and 45-105 um).
Low Satellite Content: Minimized satellite formation reduces porosity in as-sintered or as-printed components.
Key Specifications
|
Specification Item |
Additive Manufacturing Grade (Gas Atomized) |
|
Particle Size Distribution (PSD) |
15-45 um, 45-105 um (Customizable) |
|
Apparent Density |
4.0 - 4.4 g/cm3 |
|
Tap Density |
4.6 - 5.0 g/cm3 |
|
Morphology |
Spherical / Near-spherical |
|
Flowability (Hall) |
<= 18 s/50g |
Chemical Composition
|
Element |
Stainless Steel 316L (UNS S31603) |
|
Chromium (Cr) |
16.00 - 18.00 |
|
Nickel (Ni) |
10.00 - 14.00 |
|
Molybdenum (Mo) |
2.00 - 3.00 |
|
Manganese (Mn) Max |
<= 2.00 |
|
Silicon (Si) Max |
<= 1.00 |
|
Phosphorus (P) Max |
<= 0.045 |
|
Sulfur (S) Max |
<= 0.030 |
|
Carbon (C) Max |
<= 0.030 |
|
Iron (Fe) |
Balance |
Applications
Surgical guides, orthopedic instrument prototypes, and non-implantable medical device components requiring sterilization resistance.
Saltwater-resistant valves, fittings, and customized subsea hardware components.
Complex conformal cooling molds and injection molding inserts produced via selective laser melting.
Chemical reactor components, custom brackets, and fluid handling manifolds.
Manufacturing & Quality Control
Production Infrastructure: VIGA atomization towers with precise melt temperature control and inert gas management, maintaining an annual manufacturing capacity over 500 metric tons.
Analytical Equipment:
- Laser diffraction particle size analyzers for consistent PSD verification.
- LECO combustion analyzers for precise carbon and sulfur quantification.
- Scanning Electron Microscopy (SEM) for morphology inspection.
- ICP-OES spectrometers for elemental verification.
Traceability: Lot segregation ensures complete forward and backward tracking from raw master alloy to final sealed packaging.
Packaging, MOQ & Lead Time
|
Packaging |
Sealed in anti-static polyethylene bottles or double-walled vacuum aluminum foil bags under high-purity argon (<10 ppm O2), packed inside UN-certified steel drums. |
|
MOQ |
5 kg for testing and parameter qualification; 25 kg standard production batch. |
|
Lead Time |
Standard stock grades (15-45 um): Ships within 3 to 5 business days. Custom PSD ranges or bulk orders (>500 kg): 2 to 3 weeks manufacturing lead time. |
Documentation
Each shipment includes:
Material Test Report (MTR)
Batch-specific chemical assay and laser diffraction particle size distribution curves.
Certificate of Conformance (CoC)
Verifying compliance with ASTM standards.
Safety Data Sheet (SDS)
Hazard identification, storage, and handling guidelines.
FAQ
Q: How is powder moisture prevented during transit?
A: Powders are hermetically sealed under an inert argon blanket inside heavy-duty, UN-rated steel drums to eliminate atmospheric exposure.
Q: Can custom particle size distributions be ordered for older printer models?
A: Yes. Multi-stage air classifiers allow custom narrow PSD cuts to match specific OEM laser and layer thickness parameters.
Q: Are lot-specific test reports supplied with every order?
A: Yes. The physical MTR is shipped directly with the product drums and provided digitally upon dispatch.
Request a Quote
To receive a technical quotation or order test samples, please provide:
1.Alloy Designation (Stainless Steel 316L / UNS S31603)
2.Particle Size Distribution (PSD) and Required Quantity
3.Destination Port / Zip Code
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