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Technical Data Sheet
LPBF · Stainless Steel
316L Stainless Steel
UNS S31603 · 1.4404 · ASTM F3184
Corrosion-resistant austenitic stainless — the most versatile, weldable LPBF alloy. Fully dense, near-wrought properties for marine, medical, food-grade and chemical hardware.
LPBF
316L
316L~640 MPaUTS (as-built)
~530 MPaYield Rp0.2
~40 %Elongation
7.99 g/cm³Density
Material overview
316L is a low-carbon austenitic stainless steel with molybdenum for superior pitting and crevice-corrosion resistance. Printed by LPBF it reaches over 99.5% density with mechanical properties at or above wrought, excellent weldability and full biocompatibility — the best-value everyday metal for fluid, marine and medical parts. Non-magnetic and readily passivated, electro-polished or CNC-finished after printing.
Highlights
- Density: >99.5% — near-wrought
- Corrosion: Mo-bearing, pitting-resistant
- Biocompatible: medical & food-grade
- Finish: passivation · electro-polish · CNC
Ideal applications
MarineMedical & surgicalFood-gradeChemical processingFluid & pressure partsHeat exchangersBrackets & housings
Mechanical properties
| Property | Value | Unit |
|---|---|---|
| Ultimate tensile strength | ~640 | MPa |
| Yield strength (Rp0.2) | ~530 | MPa |
| Elongation at break | ~40 | % |
| Hardness | ~89 | HRB |
| Young’s modulus | ~190 | GPa |
| Layer thickness | 20-60 | µm |
| As-built roughness Ra | 6-12 | µm |
Physical & thermal
| Property | Value | Unit |
|---|---|---|
| Density | 7.99 | g/cm³ |
| Melting range | ~1375-1400 | °C |
| Thermal conductivity | ~15 | W/m·K |
| Thermal expansion | ~16 | µm/m·K |
| Powder PSD | 15-45 | µm |
| Composition | Fe·Cr16-18·Ni10-14·Mo2-3 | wt% |
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Property data per the material manufacturer’s technical datasheet and Carpenter Additive / industry references (on file). Values are indicative and may vary with machine, parameters, orientation and post-processing — not a guaranteed specification or a legally binding MSDS; SDS available on request. © 2019–2026 Additive Plus · All rights reserved. AO Metal is our trademark.