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316L Stainless Steel

316L stainless steel is a low-carbon version of 316, renowned for its excellent corrosion resistance, particularly in chloride environments, as well as its impressive strength, formability, and weldability. Known for its lower risk of carbide precipitation during welding, it is ideal for applications where corrosion and welding resistance are essential. At Solitaire Steel & Engineering LLP, Khetwadi, Mumbai, India, we provide 316L stainless steel in various forms, including sheets, plates, tubes, pipes, bars, angles, channels, beams, and fittings, suitable for industries such as chemical, pharmaceutical, and marine applications.

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Chemical Composition of 316L Stainless Steel

Element Content (%)
Iron (Fe) Balance
Chromium (Cr) 16.0 – 18.5
Nickel (Ni) 10.0 – 14.0
Molybdenum (Mo) 2.0 – 3.0
Manganese (Mn) ≤ 2.0
Silicon (Si) ≤ 0.75
Carbon (C) ≤ 0.03
Phosphorus (P) ≤ 0.045
Sulfur (S) ≤ 0.03
Nitrogen (N) ≤ 0.10

Technical Specifications of 316L Stainless Steel

Physical Properties

Property Metric Imperial
Density 8.0 g/cm³ 0.29 lb/in³
Modulus of Elasticity 193 GPa 28,000 ksi
Thermal Expansion 16.0 µm/m°C 9.2 µin/in°F
Melting Point 1371 – 1399 °C 2500 – 2550 °F

Mechanical Properties

Property Metric Imperial
Tensile Strength 485 MPa 70,000 psi
Yield Strength 170 MPa 25,000 psi
Elongation at Break 40% 40%
Hardness (Rockwell B) ≤ 95 HRB ≤ 95 HRB

Electrical Properties

Property Metric Imperial
Electrical Resistivity 0.75 µΩ·m 29.4 µΩ·in

Thermal Properties

Property Metric Imperial
Thermal Conductivity (100°C) 16.3 W/m·K 9.4 BTU/hr·ft·°F
Specific Heat Capacity 500 J/kg·K 0.12 BTU/lb·°F
Coefficient of Thermal Expansion 16.0 µm/m°C 9.2 µin/in·°F

316L Stainless Steel Product Specifications by Solitaire Steel & Engineering LLP

Product Type Standards Sizes Types Applications
Sheets & Plates ASTM A240, ASME SA240 Thickness: 0.5mm – 150mm Hot Rolled, Cold Rolled Chemical tanks, marine hardware
Pipes & Tubes ASTM A312, ASTM A269 Diameter: 6mm – 1200mm Seamless, Welded Food processing, marine environments
Bars ASTM A276, ASTM A479 Diameter: up to 100mm Round, Square, Hex Valves, fasteners, industrial equipment
Angles, Channels, Beams ASTM A484, EN 10088-3 Custom sizes available L-Angles, U-Channels, I-Beams Structural, architectural
Fittings ASTM A403 Size: 1/2″ – 72″ Buttweld, Socket Weld Piping systems, chemical processing plants

Processing and Fabrication Properties of 316L Stainless Steel

  • Forming: High formability with both cold and hot forming methods.
  • Welding: Excellent weldability; low carbon content minimizes carbide precipitation, eliminating the need for post-weld annealing.
  • Cold Working: Responds well to cold working, allowing strength enhancement without compromising corrosion resistance.
  • Heat Treatment: Cannot be hardened by heat treatment; solution annealing is achievable at 1010–1120°C.
  • Machining: Can be machined effectively, especially in enhanced machining-grade forms.

Applications of 316L Stainless Steel

316L stainless steel’s corrosion resistance and durability make it highly versatile, suitable for:

  • Chemical and Petrochemical Processing: Tanks, pipes, valves
  • Food Processing: Containers, processing equipment
  • Medical and Pharmaceutical Equipment: Surgical instruments, implants
  • Marine Applications: Marine hardware, desalination equipment

316L Stainless Steel vs. 316 Stainless Steel

Compared to 316, 316L is better suited for environments involving frequent welding due to its lower carbon content, reducing carbide precipitation and enhancing corrosion resistance, especially in chloride-exposed applications.