KW-M-04Material datasheet · revision 2026-10-12-demo-2
Stainless steel 316L
State the environment that led you to specify 316L.
1.0Who asks for it
For parts that see cleaning agents, moisture or outdoor exposure: covers, flanges, sensor housings and fittings. Tell us the environment that led you to 316L; we compare the drawing with the stock we can source, never the environment with a guarantee.
2.0Grade and condition
| Grade | 316L |
|---|---|
| Condition | Confirm stock condition |
| Family | Metal |
| Screen note | For a discussion of exposure conditions; no corrosion-life promise. |
3.0Screening by process
| Process | Envelope | Tolerance | Batch |
|---|---|---|---|
| 3-axis milling | 500 × 400 × 300 mm | ±0.05 mm | 1–500 |
| 5-axis milling | 250 × 250 × 250 mm | ±0.02 mm | 1–250 |
| CNC turning | Ø200 × 400 mm | ±0.02 mm | 1–1000 |
4.0Try a part
Capability checkPreview with a sample part
Try a 120 × 80 × 30 mm block in 316L, passivated, 25 parts: here is how each process reads it.
Sample partStainless steel 316L · Block 120 × 80 × 30 mm · ±0.10 mm · 25 parts · Passivate
Open the full check with this partEngineering review needed
No process is within all selected ranges. 2 processes need review.
Geometry and drawing review still required.
- Review3-axis millingReview: finish.
- Review5-axis millingReview: finish.
- OutsideCNC turningTurning screens round parts only.
Sample part · data revision 2026-10-12-demo-2 · illustrative ranges, never a price
5.0Finishes
| Finish | Screen | Note |
|---|---|---|
| As machined | No extra finish review | No extra finish review; drawing and geometry review still applies. |
| Anodise | Not listed, review | Not a listed pairing for this grade. Describe the specification; material and finish suitability are reviewed before quoting. |
| Passivate | Listed pairing, review | Listed pairing is a screening assumption, never proof of suitability; agree specification and evidence. |
| Plating | Listed pairing, review | Listed metal pairing is a screening assumption, never proof of suitability; process, coating and grade need review. |
| Heat treatment | Listed pairing, review | All metal selections require manual grade, temper and treatment suitability review; listing is not a recommendation. |
| Other finish | Not listed, review | Describe the required finish; material and finish suitability need review. |
| Not specified yet | Not listed, review | Agree the finish and material pairing before quoting. |
6.0Questions we ask
- Which exact grade is required?
- What are the operating conditions?
- Which surface or inspection documents do you need?
7.0Worked RFQ
“Quote 40 flanges in stainless 316L, Ø90 × 12 mm, ±0.05 mm on the bore, passivated, with a 3.1 material certificate.”
Still to agree: Bore fit, bolt-hole positions, the passivation specification, the surfaces that matter and the date.
Try this example in the check8.0Questions buyers ask
Is 316L corrosion-proof?
No grade is. 316L resists more chemicals than 304, but the result depends on the environment, the finish and the design. Name the exposure in your RFQ and we raise anything the drawing should settle.
Should I ask for passivation?
Passivation is a listed pairing with stainless steel, so the check marks it as a request that needs review. We confirm the specification and the partner who carries it out in the quotation.
Can I get a material certificate?
Ask for an EN 10204 3.1 certificate in the RFQ. It covers the stock, not the finished dimensions; a dimensional report covers those.
Can you machine 316 instead of 316L?
Choose Other in the check and name the exact grade. It goes to review, and we tell you what stock is available before quoting.