316/316L is an austenitic chromium-nickel stainless steel containing molybdenum. This addition increases general corrosion resistance, improves resistance to pitting from chloride ion solutions, and provides increased strength at elevated temperatures. Corrosion resistance is improved, particularly against sulfuric, hydrochloric, acetic, formic, and tartaric acids.

UNS: S31600/S31603
Stock Sizes: 1/8” – 8” OD; 3mm – 50mm OD


  • Seamless Tube: ASTM A213/A269
  • Welded Tube: ASTM A249/A269
  • Seamless Mechanical Tube: ASTM A511
  • Welded Mechanical Tube: ASTM A554
  • Welded & Seamless Pipe: ASTM A312
  • NACE MR0175/MR0103

Available Processing:

  • Cold Worked and Bright Annealed
  • Cold Worked, Annealed, and Pickled
  • Cold Worked
  • Hot Finished

Common Testing: Eddy Current, Flare, Flattening, Positive Material Identification

Chemical Composition (%)

Iron (Fe)Balance
Chromium (Cr)16-18%
Nickel (Ni)10-14%
Nickel (Ni) - A51111-14%
Molybdenum (Mo)2-3%
Manganese (Mn)2% Max
Silicon (Si)1% Max
Carbon (C)0.035% Max
Sulfur (S)0.030% Max
Phosphorus (P)0.045% Max

Physical Properties

Density (lb/in3)0.285
Elongation (min %)35
Minimum Yield (psi)30,000
Minimum Tensile (psi)75,000
Max Hardness (HRB)90