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This data sheet contains approximate values that may vary with build conditions and is intended for reference and comparison purposes only. It should not be used for  
design specifications or quality control. The performance characteristics of the material may be affected (±) by, but are not limited to, part design, part geometries,  
application and operating conditions. Each user is responsible for determining that the material is safe, lawful and technica lly suitable for the intended laws and  
regulations. A DDITIVA makes no warranties of any kind, express or implied, including, but not limited to, the warranties of merchantability, fitness for a particular use, or  
warranty against patent infringement. ADDITIVA excludes liability, however arising, for any inac curacies in this document.  
ADDITIVA\_Stainless Steel 316L\_rev006.docx  
Stainless Steel 316L is a fully austenitic chromium \- nickel \- molybdenum steel. Molybdenum provides high corrosion  
resistance. Its very low carbon content also improves resistance to intergranular corrosion and enhances weldability.  
Post \- weld heat treatment i s generally unnecessary. Stainless Steel 316L is not susceptible to pitting or crevice corrosion  
in chloride \- rich solutions.  
Stainless Steel 316L is used to manufacture acid \- and corrosion \- resistant prototypes, as well as unique or series \-  
production parts,in sectors such as automotive, shipbuilding, aerospace, food and beverage (including corrosion \-  
resistant pipes and containers), chemical, pharmaceutical, oil, and gas.  
Parts made from stainless steel 316L can be machined, welded, shot \- peened, polished, and coated.  
UNS AMS ASTM DIN  
S31603 5507 \- 5653 A240 DIN 1.4404 – ISO 5832 \- 1  
Chemical composition Physical properties  
Fe – Iron balance Relative density Approx. 99.9%  
Cr – Chromium 16÷18% Density 7.90 g/cm 3  
Ni – Nickel 11÷13%  
Mo – Molybdenum 2.0÷3.0% Heat Treatment (stress relief)  
Mn – Manganese ≤ 2.00% optional for parts sensitive to warpage  
Si – Silicon ≤ 0.75% 20°C → 550°C 3 hours  
Cu – Copper ≤ 0.50% 550°C 6 hours  
P – Phosphorus ≤ 0.25% 550°C → 20°C \-  
N – Nitrogen ≤ 0.10%  
S – Sulfur ≤ 0.10%  
O – Oxygen ≤ 0.10%  
C – Carbon ≤ 0.03%  
Technical data  
Typical part accuracy (quote < 150 mm) ± 0.2/0.3 mm  
Typical part accuracy (quote ≥ 150 mm) ± 0.05mm each 25mm  
Surface roughness (as built) Ra: 5 ÷ 9 µm  
Surface roughness (after machining / polishing) Ra < 1.6 µm  
Mechanical properties  
Mechanical data Test method As Built Heat Treated  
Tensile strenght (Rm)  
ASTM E8 / E8M  
(unmachined specimen, Z \- axis)  
6 4 0 ± 2 0 MPa  
Yield strength (Rp 0.2%) 4 7 0 ± 2 0 MPa  
Elongation at break 6 0 ± 10 %  
Young’s modulus 17 0 ± 2 0 GPa  
Hardness DIN EN ISO 6508 \- 1 18 HRC  
Thermal properties  
Maximum long \- term operating temperature Approx. 400°C / 752 °F  
Thermal conductivity Approx.15 W/mK

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