Stainless Steel 316L – Durable, Biocompatible, Reliable

Stainless Steel 316L is a low-carbon austenitic alloy prized for its corrosion resistance, excellent weldability, and biocompatibility. Advanced Hermetic Solutions integrates SS316L into hermetic designs where cleanliness, strength, and environmental resistance are essential.

Material Properties

  • Chromium: 16–18%
  • Nickel: 10–14%
  • Molybdenum: 2–3%
  • Density: 8.00 g/cm³
  • Melting Point: 1,390–1,440°C
  • Thermal Conductivity: 16.3 W/m·K
  • Tensile Strength: 485–620 MPa
  • Yield Strength: 170–206 MPa
  • Hardness (Brinell): ≤ 217
  • Expansion Coefficient: 15.9 µm/m·°C
  • Weldability: Excellent (low carbon minimizes carbide precipitation)
  • Magnetic Response: Non-magnetic in annealed condition

Applications in Hermetic Engineering

Medical Components

SS316L is used in implantable sensor housings, diagnostic tools, and laser-processed surgical instruments due to its biocompatibility and corrosion resistance.

Vacuum & Cleanroom Assemblies

Its low outgassing and stability under vacuum make it suitable for UHV systems and cleanroom-mounted hermetic packages.

Aerospace & Defense Systems

SS316L performs reliably in ruggedized sensor mounts, EMI/RFI-shielded connector shells, and corrosion-prone aerospace interfaces.

Chemical & Marine Environments

Excellent resistance to chloride environments makes 316L ideal for hermetically sealed units exposed to seawater or chemical splash zones.

Brazing Interfaces

Used as a braze-compatible base metal in composite packages requiring mechanical and chemical durability under thermal cycling.

Instrumentation & Control Systems

Integrated in harsh-duty enclosures where long-term reliability and inertness are critical to high-value sensing applications.

Partner with AHS for High-Performance Stainless Solutions

Whether you require custom SS316L machining, clean welding, or brazing integration for hermetic packaging, Advanced Hermetic Solutions has the engineering expertise to support your product development and production needs.

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