Alloy 316 • UNS S31600 • WNR 1.4401

Grade 316 is the standard molybdenum-bearing grade, second inoverall volume production to 304 amongst the austenitic stainless steels. The molybdenum gives 316 better overall corrosion resistant properties than Grade 304, particularly higher resistance to pitting and crevice corrosion in chloride environments.

Grade 316L, the low carbon version of 316 and has very high immunity from sensitization (grain boundary carbide precipitation). It is extensivly used in the oil and gas and chemical industries for its cost effective corrosion resistance and ease of fabrication. There is commonly no appreciable price difference between 316 and 316L stainless steel. The austenitic structure also gives these grades excellent toughness, even down to cryogenic temperatures. Compared to chromium-nickel austenitic stainless steels, 316L stainless steel offers higher creep, stress to rupture and tensile strength at elevated temperatures.

These alloys may be considered for a wide variety of applications where one or more properties are important.

Available tube product forms

Typical Applications

Typical manufacturing specifications

  • ASTM A213
  • ASTM A269
  • ASTM A312
  • ASTM A632
  • ASME SA213
  • NFA 49-117
  • BS 10216
  • Also individual customer specifications.

Industries predominantly using this grade            

Technical Data

Mechanical Properties

Temper Annealed Cold worked (approx. 20%)
Material 316 316L   316 316L  
Tensile Rm 75 70 ksi (min) 102-131 ksi (min)
Tensile Rm 515 485 MPa (min) 700-900 MPa (min)
R.p. 0.2% Yield 30 27 ksi (min) 73-102 ksi (min)
R.p. 0.2% Yield 205 182 MPa (min) 500-700 MPa (min)
Elongation (2” or 4D gl) 35 % (min) 40 % (min)


Physical Properties (Room Temperature)

Specific Heat (0-100°C) 500 J.kg-1.°K-1
Thermal Conductivity 16.3 W.m -1.°K-1
Thermal Expansion 15.9 mm/m/°C
Modulus Elasticity 193 GPa
Electrical Resistivity 7.4 μohm/cm
Density 7.99 g/cm3


Chemical Composition (% by weight)

  316 316L
Element Min Max Min Max
C - 0.08 - 0.035
Mn - 2 - 2
Ni 10 14 10 15
Cr 16 18 16 18
Mo 2 3 2 3
S - 0.03 - 0.03
Si - 1 - 1
P - 0.045 - 0.045
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