Corrosion Resistant SS · Austenitic
Stainless Steel 316L
Stainless Steel 316L is a corrosion resistant stainless steel — weldable marine grade. Typical values: 170 MPa yield, 8 g/cm³, rated to 800 °C. Available for CNC machining, Sheet metal, 3D printing at FabDigit.
Properties
Typical room-temperature values in the Solution Annealed condition. Metric first, imperial in gray. The bars show where 316L sits against the other 87 stainless steel grades in the catalog.
Datasheet
| Yield strength | 170 MPa25 ksi |
|---|---|
| Tensile strength | 485 MPa70 ksi |
| Hardness | 140 HB |
| Density | 8 g/cm³0.289 lb/in³ |
| Specific strength (yield ÷ density) | 21 |
| Min service temp | -200 °C-328 °F |
| Max service temp | 800 °C1,472 °F |
| Electrical conductivity | 2.2 % IACS1.3 MS/m |
| Machinability | Fair40 / 100 |
| Weldability | Excellent95 / 100 |
| Formability | Very good75 / 100 |
| ISO 513 machining group | M |
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Against other stainless steel grades
Strength versus weight in the stainless steel family
Yield strength against density for every stainless steel grade FabDigit runs. 316L is highlighted; hover a dot for its name, or open the interactive family chart.
Manufacturability
The process limits FabDigit's quote engine applies to 316L. Design inside these and the part quotes instantly; outside them it routes to an engineer.
CNC machining
| Machinability | Fair40 / 100 |
|---|---|
| ISO material group | M.1 |
| Cutting speed (rough / finish) | 150 / 180 m/min |
| Minimum wall | 0.8 mm |
| Minimum internal radius | 1.5 mm |
| Drill depth limit | 4× diameter |
| Best surface (machined / polished) | Ra 1.6 / — |
| Hardenable after machining | No |
Sheet metal
| Formability | Better75 / 100 |
|---|---|
| Weldability | Better95 / 100 |
| Bendable | Yes |
| Minimum bend radius | 1× thickness |
| Spring-back | High |
| Welding processes | TIG, MIG, SPOT, SEAM, LASER |
3D printing
| Technologies | DMLS |
|---|---|
| Layer height | 20 – 60 µmdefault 30 µm |
| Minimum wall / feature | 0.5 / 0.3 mm |
| Build envelope | 250 × 250 × 325 mm |
| Supports | Yes |
| Anisotropy | Mild |
| Mandatory post-processing | heat treatment |
Conditions and tempers
How 316L is supplied and what each state is for. The default is what FabDigit quotes unless your drawing says otherwise.
| Condition | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
Solution AnnealedDefault Heat Treat State | Best corrosion resistance — food, chemical, marine hardware | 170 | 485 | 40 | 79 HRB |
Stress Relieved Heat Treat State | Holds tight flatness/tolerance through heavy machining | — | — | — | — |
Annealed Temper | Softest supply state — for forming, or when you heat-treat after machining | 170 | 485 | 40 | 79 HRB |
Cold Rolled Cold Work | Smoother and more precise than hot rolled — panels, brackets | 380 | 620 | 25 | 90 HRB |
Cold Drawn Cold Work | Precision bar with finished OD — shafts, pins, less machining | 380 | 620 | 25 | 90 HRB |
As Printed Print State | Standard printed state — fine for prototypes and fixtures | — | — | — | — |
Heat treatment and post-processing
Operations FabDigit's suppliers routinely run on 316L, ranked by how often they make sense for this grade.
Heat treatment
| Solution Anneal | Dissolve carbides; reset austenite (stainless) |
|---|---|
| Stress Relief | Reduce residual stress without changing structure |
| Quench & Temper | Achieve target hardness with controlled toughness28–55 HRC |
Post-processing
| Manual Deburr | Deburrstandard |
|---|---|
| Passivate (Citric) | Passivation |
| Edge Break (0.5mm) | Deburr |
| Passivate (Nitric / AMS 2700) | Passivation |
| Electropolish | Polish |
| Glass Bead Blast | Blast |
| Laser Mark | Marking |
| CMM Inspection | Inspection |
| FAI Report | Inspection |
| Individual Bag | Packaging |
Surface finishes for 316L
Coatings and treatments compatible with stainless steel on the processes 316L runs on. Pick them in the quote configurator or call them out on the drawing.
Passivation
- Electropolishing
- Passivation (Stainless Steel)
- Pickling
Plating
- Chrome Plating
- Electroless Nickel (EN)
- Gold Plating
- Hard Chrome Plating
- Nickel Plating
- Silver Plating
PVD Coating
- AlCrN
- AlTiN
- CrN
- DLC
- MoS2
- TiAlN
- TiB2
- TiCN
- TiN
- WC/C
- ZrN
Organic Coating
- Cerakote
- Epoxy Coating
- Painting
- Powder Coating
- PTFE Coating
CVD Coating
- CVD Al2O3
- CVD TiCN
- CVD TiN
- Multilayer CVD
Marking / Decoration
- Chemical Etching
- Dot Peen Marking
- Electro-chemical Etching
- Embossing / Debossing
- Ink Stamping
- Laser Marking
- Mechanical Engraving
- Steel Stamping
- Vibro Engraving / Scribing
Black / Phosphate
- Black Oxide
Metal Finish
- Electropolished (Metal AM)
- Passivated (Metal AM)
- Plated (Metal AM)
Thermal Spray
- HVOF Coating
- Plasma Spray
Equivalent designations
Standards and trade names that resolve to Stainless Steel 316L in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- S31603
- EN / DIN / Werkstoff-Nr.
- 1.4404X2CrNiMo17-12-2
- GB (China)
- 00Cr17Ni14Mo2022Cr17Ni12Mo2
- JIS
- SUS316L
- Other
- low-carbon 316SS316L316L Metal FilamentMarkforged 316L316L Stainless Steel316 Stainless Steel (Binder Jet)
Stock forms
Raw-material forms FabDigit sources 316L in, with the common sizes held in North American stock.
- Plate thickness
- 1/4"8 mm10 mm1/2"15 mm20 mm1"
- Sheet thickness
- 0.5 mm0.020"0.8 mm0.032"1 mm1.2 mm0.050"1.5 mm0.064"2 mm0.080"2.5 mm3 mm0.125"+5
- Bar diameter
- 圆钢 Ø6圆钢 Ø8圆钢 Ø10圆钢 Ø12圆钢 Ø14圆钢 Ø16圆钢 Ø18圆钢 Ø20圆钢 Ø22圆钢 Ø25圆钢 Ø28圆钢 Ø30圆钢 Ø32圆钢 Ø36+17
- Bar flat
- 扁钢 20×3扁钢 25×4扁钢 30×6扁钢 40×4扁钢 50×8扁钢 60×10扁钢 80×8扁钢 100×12扁钢 120×12扁钢 150×16扁钢 200×20扁钢 250×25扁钢 300×30
- Bar square
- 方钢 6×6方钢 8×8方钢 10×10方钢 12×12方钢 16×16方钢 20×20方钢 25×25方钢 30×30方钢 40×40方钢 50×50方钢 63×63方钢 80×80方钢 100×100方钢 120×120+2
- Tube od
- 钢圆管 Ø18×1.5钢圆管 Ø20×1.5钢圆管 Ø25×2.5钢圆管 Ø32×4钢圆管 Ø40×2钢圆管 Ø48×4钢圆管 Ø57×4钢圆管 Ø60×3钢圆管 Ø76×2.5钢圆管 Ø89×5钢圆管 Ø100×3钢圆管 Ø108×4钢圆管 Ø114×5钢圆管 Ø133×6+4
- Tube rect_tube
- 矩钢管 40×20×2.5矩钢管 50×30×2.5矩钢管 60×40×2.5矩钢管 80×40×2.5矩钢管 100×50×3矩钢管 120×60×3矩钢管 150×100×5矩钢管 200×100×5矩钢管 250×150×8矩钢管 300×200×5
- Tube sq_tube
- 方钢管 20×20×1.5方钢管 25×25×2方钢管 30×30×2.5方钢管 40×40×3方钢管 50×50×2.5方钢管 60×60×2方钢管 70×70×4方钢管 80×80×4方钢管 100×100×5方钢管 120×120×6方钢管 150×150×3方钢管 200×200×5方钢管 250×250×5方钢管 300×300×8
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.