Corrosion Resistant SS · Austenitic

Stainless Steel 316

Stainless Steel 316 is a corrosion resistant stainless steel — marine grade expert. Typical values: 205 MPa yield, 8 g/cm³, rated to 800 °C. Available for CNC machining, Sheet metal, Casting & forging at FabDigit.

CNC machining Sheet metal Casting & forgingPremium cost $$$Stocked · instant quote

Quote a part in 316 Compare with…All stainless steel grades

Properties

Typical room-temperature values in the Solution Annealed condition. Metric first, imperial in gray. The bars show where 316 sits against the other 87 stainless steel grades in the catalog.

Datasheet

Yield strength	205 MPa30 ksi
Tensile strength	485 MPa70 ksi
Hardness	150 HB
Density	8 g/cm³0.289 lb/in³
Specific strength (yield ÷ density)	26
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	Excellent85 / 100
Formability	Very good70 / 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

Yield strength205 MPa 30 ksi

208 MPafamily median 275 MPa760 MPa

Tensile strength485 MPa 70 ksi

483 MPafamily median 620 MPa1,035 MPa

Density8 g/cm³ 0.289 lb/in³

7.7 g/cm³family median 7.8 g/cm³8 g/cm³

Hardness (HB equiv.)150 HB

158 HBfamily median 185 HB421 HB

Max service temp800 °C 1,472 °F

480 °Cfamily median 760 °C1,020 °C

Electrical conductivity2.2 % IACS 1.3 MS/m

2.1 % IACSfamily median 2.4 % IACS3 % IACS

Machinability40 / 100

29 / 100family median 40 / 10075 / 100

Relative cost42

34family median 4858

Strength versus weight in the stainless steel family

Yield strength against density for every stainless steel grade FabDigit runs. 316 is highlighted; hover a dot for its name, or open the interactive family chart.

Manufacturability

The process limits FabDigit's quote engine applies to 316. 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)	140 / 170 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 / 0.8 µm
Hardenable after machining	No

Sheet metal

Formability	Better70 / 100
Weldability	Excellent85 / 100
Bendable	Yes
Minimum bend radius	1× thickness
Spring-back	High
Welding processes	TIG, MIG, SPOT, SEAM, LASER

Conditions and tempers

How 316 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	205	515	40	79 HRB
Annealed Temper	Softest supply state — for forming, or when you heat-treat after machining	205	515	40	79 HRB
Cold Rolled Cold Work	Smoother and more precise than hot rolled — panels, brackets	415	620	25	90 HRB
Cold Drawn Cold Work	Precision bar with finished OD — shafts, pins, less machining	415	620	25	90 HRB

Heat treatment and post-processing

Operations FabDigit's suppliers routinely run on 316, 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 316

Coatings and treatments compatible with stainless steel on the processes 316 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

Thermal Spray

HVOF Coating
Plasma Spray

Equivalent designations

Standards and trade names that resolve to Stainless Steel 316 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.

UNS: S31600
AISI / SAE: 316L
EN / DIN / Werkstoff-Nr.: 1.4401X5CrNiMo17-12-2X2CrNiMo17-12-2
GB (China): 06Cr17Ni12Mo20Cr17Ni12Mo2
JIS: SUS316
KS (Korea): STS316
Other: A4-70Inox 316SS316

Stock forms

Raw-material forms FabDigit sources 316 in, with the common sizes held in North American stock.

PlateSheetCoilBarTubePipeWire

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 20×5扁钢 25×4扁钢 30×4扁钢 40×6扁钢 50×8扁钢 60×6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 Ø18×2钢圆管 Ø20×2钢圆管 Ø25×2钢圆管 Ø32×3钢圆管 Ø40×3钢圆管 Ø48×2钢圆管 Ø57×2钢圆管 Ø60×2钢圆管 Ø76×2.5钢圆管 Ø89×4钢圆管 Ø100×2.5钢圆管 Ø108×3钢圆管 Ø114×3钢圆管 Ø133×3+4
Tube rect_tube: 矩钢管 40×20×4矩钢管 50×25×2矩钢管 60×40×2矩钢管 80×40×2.5矩钢管 100×50×5矩钢管 120×60×6矩钢管 150×100×3矩钢管 200×100×8矩钢管 250×150×4矩钢管 300×200×8
Tube sq_tube: 方钢管 20×20×1.5方钢管 25×25×1.5方钢管 30×30×1.5方钢管 40×40×2方钢管 50×50×2方钢管 60×60×2方钢管 70×70×4方钢管 80×80×2.5方钢管 100×100×4方钢管 120×120×3方钢管 150×150×3方钢管 200×200×4方钢管 250×250×4方钢管 300×300×4
Structural Shape angle: 角钢 20×20×3角钢 25×25×3角钢 30×30×3角钢 40×40×3角钢 50×50×4角钢 63×40×6角钢 70×70×6角钢 75×50×5角钢 80×80×6角钢 90×90×10角钢 100×63×8角钢 110×110×10角钢 125×125×10角钢 140×140×12+4
Structural Shape channel: 槽钢 50×37×4.5槽钢 63×40×4.8槽钢 80×43×5槽钢 100×48×5.3槽钢 126×53×5.5槽钢 140×58×6槽钢 160×63×6.5槽钢 180×68×7槽钢 200×73×7槽钢 220×77×7槽钢 250×78×7槽钢 280×82×7.5槽钢 300×85×7.5

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.