Stainless

T-316, T-316L, T-316N

Stainless Steel T-316, T-316L, T-316N (UNS S31600, S31603, S31653)
  • 18-12-3 Chromium-Nickel-Molybdenum austenitic stainless steel.
  • Available in most forms & sheets, plates and coils to ASTM A240; bar sections to ASTM A276 & A479
Typical Analysis
T-316
C Mn P S Si Cr Ni Mo N
.08
Max		 2.0
Max		 .045
Max		 .030
Max		 1.0
Max		 16/18 10/14 2/3 .10
Max
T-316L
C Mn P S Si Cr Ni Mo N
.03
Max		 2.0
Max		 .045
Max		 .030
Max		 1.0
Max		 16/18 10/14 2/3 .10
Max
T-316N
C Mn P S Si Cr Ni Mo N
.08
Max		 2.0
Max		 .045
Max		 .030
Max		 1.0
Max		 16/18 10/14 2/3 .10/
16
Characteristics
  • In simple terms, T-316 is a molybdenum bearing T-304; the addition of molybdenum greatly increases its corrosion resistance and its mechanical properties at elevated temperatures. This combination of corrosion resistance and high creep and tensile strength, plus good cold forming and drawing properties makes T-316 suitable for a very wide range of applications.
  • T-316L is a low-carbon modification which minimizes carbide precipitation during welding and exposure to elevated temperatures in the 425˚C/815˚C range. It can be used in the as-welded condition. T-316N has a higher nitrogen content than T-316 to increase strength with minimum effect on ductility and corrosion resistance.
  • T-316 is non-magnetic in the annealed condition and cannot be hardened by thermal treatment, but it does work harden. Machinability is approximately 42% - 70 surface feet per minute
  • T-316 is also available in Pump Shaft quality.
Typical Applications
  • Widely used in the pulp and paper, chemical, petro-chemical, fertilizer and pharmaceutical industries. Heat exchangers, marine applications, aircraft industry, fittings, architectural components.
Corrosion and Heat Resistance
  • T-316 is more resistant to corrosive conditions than any of the more commonly used stainless grades (but see T-317). Very good resistance to the sulphur compounds used in pulp and paper processing. Good resistance to sulphuric, sulphurous and phosphoric acids and salts, also hydrogen sulphide; but poor resistance to hydrocloric and hydrofluoric acids. Excellent scale resistance at temperatures up to 900℃ in continuous service and up to 850℃ for intermittent service.
Stainless Steel T-316, T-316L, T-316N (UNS S31600, S31603, S31653) Mechanical Properties - Bar
  • Typical at Room Temperature
Bars T-316 T-316L T-316N
Tensile Strength, psi 80,000 75,000 90,000
Tensile Strength, N/mm² 552 517 621
Yield Strength, psi 30,000 30,000 42,000
Yield Strength, N/mm² 207 207 290
Elongation (%) 60 60 55
Hardness 166 (86) 149 (81) 183 (90)
Stainless Steel T-316, T-316L, T-316N (UNS S31600, S31603, S31653) Mechanical Properties - Sheet
  • Typical at Room Temperature
Sheet T-316 T-316L T-316N
Tensile Strength, psi 84,000 79,000 90,000
Tensile Strength, N/mm² 579 545 621
Yield Strength, psi 42,000 38,000 48,000
Yield Strength, N/mm² 290 262 331
Elongation (%) 50 55 48
Hardness 149 (81) 146 (80) 170 (87)
Stainless Steel T-316, T-316L, T-316N (UNS S31600, S31603, S31653) Mechanical Properties - Plate
  • Typical at Room Temperature
Plate T-316 T-316L T-316N
Tensile Strength, psi 82,000 78,000 88,000
Tensile Strength, N/mm² 585 538 607
Yield Strength, psi 36,000 35,000 46,000
Yield Strength, N/mm² 248 241 317
Elongation (%) 55 68 50
Hardness 146 (80) 143 (79) 166 (86)
Stainless Steel T-316, T-316L, T-316N (UNS S31600, S31603, S31653)
  • Strain Hardened Bar, Centerless Ground
Typical Analysis
C Mn P S Si Cr Ni Mo N
.03
Max		 2.0
Max		 .045
Max		 .030
Max		 1.0
Max		 16/18 10/14 2/3 .10
Max
Characteristics
  • Cold drawn, centreless ground.
  • Typical Surface Finish:
    • Clean, bright smooth finish; defect free.
    • Smoother finish than Smooth Turned. RMS
    • Finish: 30 max guaranteed.
  • Straightness 0.0625" in 5 ft.
Typical Applications
  • Boat shafting, cylinder rods, pulp, paper, chemical and petro chemical industries.
Size Range Rounds
  • Tolerances – Plus or Minus in inches
      125 - .317 000 to .001
      .318 - .500 000 to .0015
      .501 - .999 000 to .002
      1.000 - 1.499 000 to .0025
      1.500 - 3.499 1.500 - 3.499
      3.500 - 6.750 000 to .004
Stainless Steel T-316, T-316L, T-316N (UNS S31600, S31603, S31653) Physical Properties - Type Condition
Tensile
Min, psi (MPa)		 Yield
Min, psi (MPa)		 Elongation
in 2" or 50mm		 Reduction
of area min.%
316/316LStrain-Hardened 95000 75000 25 40
2" and under [650] [515]
over 2" to 2 1/2" 95000 65000 30 40
(50.8 to 63.5mm) incl. [650] [450]
over 2 1/2" to 3 1/2" 80000 55000 30 40
(63.5 to 88.9mm) incl. [550] [380]
over 3 1/2" to 4" 80000 45000 30 60
(88.9 to 101.6mm) incl. [550] [310]

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