CNC Machining
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View CNC MachiningAustenitic Stainless Steel
Stainless Steel 316 / 316L
316 adds about 2–3% molybdenum to the austenitic chromium-nickel base, which significantly improves resistance to pitting and crevice corrosion in chlorides such as seawater and de-icing salts. Request a quote or browse all materials.
Typical Properties
Stainless Steel 316 at a glance
| Property | Typical value |
|---|---|
| Density | 8.00 g/cm³ (0.289 lb/in³) |
| Ultimate tensile strength | 515 MPa min (ASTM A240); ~580 typical |
| Yield strength (0.2%) | 205 MPa min; ~290 typical |
| Elongation at break | 40% min; ~50% typical |
| Hardness | ~149–217 HB (annealed) |
| Elastic modulus | 193 GPa |
| Thermal conductivity | 16.3 W/m·K |
| Composition | ~17% Cr, ~12% Ni, 2–3% Mo |
Annealed condition. 316L has lower carbon for welded assemblies. These are typical reference values from standard published data, not guaranteed minimums. Request material certificates in your RFQ if properties must be verified.
Advantages
Why engineers choose Stainless Steel 316
Chloride resistance
Better pitting resistance than 304 in marine and salt exposure.
Chemical resistance
Common for process equipment and fluid handling.
Weldability
Welds well; 316L limits carbide precipitation.
Temperature
Retains useful strength at elevated temperatures.
Design considerations: Higher cost than 304; gummy machining behavior and work hardening; not heat treatable for hardness.
Applications
Common uses
Marine hardwareValve bodies and fluid fittingsChemical process partsMedical and lab device components (application specific)Outdoor enclosures
Processes and Finishes
How 3DWK can make it
Swiss Turning
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View Sheet Metal FabricationWire EDM
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A common finish option for Stainless Steel 316 parts.
View finishPlating & Conversion Coatings
A common finish option for Stainless Steel 316 parts.
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