Lot documentation COA and PSD data available subject to the quoted lot
Illustrative powder image Process fit Matched to equipment and build requirement
Stainless steel Availability on request
316L · S31603
316L stainless steel powder supplier and RFQ
A widely used corrosion-resistant powder for manifolds, fluid hardware, industrial parts, MIM, and binder jet.
Also searched as
- 316L
- UNS S31603
- EN 1.4404
- PSD candidates
- 15–45 µm · 15–53 µm · 45–106 µm
- Process routes
- LPBF · DED · Binder jet · MIM
- Commercial path
- Quote by lot
Final price, availability, lead time, chemistry, performance data, and documentation are confirmed for the quoted specification and lot.
Alloy identification
Specify this powder by grade, then narrow the buying requirement.
Use 316L, UNS S31603, or EN 1.4404 as the starting designation. The governing chemistry, process route, and corrosion-service limits still need to be stated.
Similar grade names do not establish identical chemistry or process compatibility. Include the governing specification and required edition; the quotation confirms the proposed powder and supporting lot records.
Specification controls
Define the powder beyond the alloy designation.
The same grade name can represent materially different powder routes. A usable RFQ needs the acceptance method, limits, packaging, and intended process.
Chemistry & standard
State the governing grade, revision, restricted elements, and any tighter oxygen or nitrogen limits.
PSD & method
Choose a candidate range and state whether sieve, laser diffraction, or a customer method controls acceptance.
Powder behavior
Define required flow, apparent/tap density, morphology evidence, satellites, and hollow-particle limits where relevant.
Lot & reuse plan
Confirm lot size, virgin/reused powder policy, blend restrictions, sampling, retention, and traceability expectations.
Process and PSD
Process and PSD options to confirm in the RFQ.
PSD labels below are catalog starting points. Final fit depends on the machine, layer strategy, feed system, qualification plan, and the supplier lot.
| Decision variable | Catalog starting points | Required confirmation |
|---|---|---|
| Process candidates | LPBF · DED · Binder jet · MIM | Machine, feed system, layer strategy, and qualification stage |
| PSD candidates | 15–45 µm · 15–53 µm · 45–106 µm | Target process, equipment limits, and PSD test method |
| Process × PSD pairing | Not implied by this catalog page | Confirmed in the RFQ against the selected source and lot |
Powder screening data
A screening window for a better technical RFQ.
These grade-specific values help define the questions to ask. They are not stock data, a universal specification, or a lot certificate.
| Powder metric | Screening value | Qualification boundary |
|---|---|---|
| D10 | ≥15 µm | Method and lot to be confirmed |
| D50 | 30–40 µm | Method and lot to be confirmed |
| D90 | ≤60 µm | Method and lot to be confirmed |
| Sphericity | ≥0.90 | Method to be confirmed |
| Apparent density | ≥4.0 g/cm³ | Method and lot to be confirmed |
| Tap density | ≥4.5 g/cm³ | Method and lot to be confirmed |
| Flow | ≤20 s/50 g | Method and conditioning to be confirmed |
LPBF screening window. A 316L screening basis; chemistry, PSD method, and the delivered lot remain controlling. Ask for the governing test method, sampling rule, source, production route, and lot-linked report in the quotation.
Application fit
Applications suited to technical review.
Fluid manifolds and fittings
Corrosion-resistant hardware
General industrial AM
Failure modes
Critical variables to verify before qualification.
- Chemistry standard
- Corrosion environment
- Process-specific PSD
Evidence package
Request the documents that support the actual buying decision.
State the 316L, UNS, EN, or customer chemistry basis and identify any ferrite, corrosion, or restricted-element acceptance limits.
Certificates, technical data, sample reports, and partner-specific documents are supplied only when they correspond to the quoted source, grade, particle-size route, and lot.
Price and supplier RFQ
Price and availability follow the exact grade, PSD, evidence, and delivery scope.
A useful supplier comparison keeps the technical and commercial basis identical. Send the same inputs to avoid comparing different chemistry limits, powder routes, packages, or document scopes as if they were the same product.
Grade and acceptance basis
State the 316L, UNS, EN, or customer chemistry basis and identify any ferrite, corrosion, or restricted-element acceptance limits.
Process, machine, and PSD
State the target process, equipment constraints, particle-size range, and governing PSD method.
Quantity, packaging, and destination
Separate sample and production quantities; include package size, destination country, and target timing.
Lot evidence and source controls
List required COA, PSD, SDS, TDS, SEM, traceability, sampling, and production-route evidence.
Custom chemistry or PSD?