317L Stainless Steel Plate – UNS S31703 - LM / LMN

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317L/LM/LMN are low-carbon, higher molybendum austenitic stainless steels with higher nickel alloy content.  Developed to resist the attack of sulfuric acid compounds, these alloys combine good corrosion resistance with good mechanical properties and fabricability.  They are frequently used for flue gas desulfurization service.


317L/LM/LMN Inventory Size Ranges

Plate

0.625" - 1.250"

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Standard Inventory Specifications

  • UNS S31703 - 317L
  • UNS S31725 - 317LM
  • UNS S31726 - 317LMN
  • ASTM A 240
  • ASTM A182
  • ASTM A167
  • ASME SA 240

Common Applications of 317L/LM/LMN

  • Pulp and Paper
  • Food Processing Equipment
  • Textiles

Features

  • Good corrosion resistance
  • Good mechanical properties
  • Ease of fabrication
  • Produces stronger welds due to lower carbon content
  • Resists the attack of sulfuric acid compounds
317L Chemical Composition
Element Percent by Weight
C Carbon 3.00%
Mn Manganese 200.00%
Si Silicon 100.00%
Cr Chromium 18.00 - 20.00
Ni Nickel 11.00 - 15.00
Mo Molybdenum 17.00 - 19.00
P Phosphorus 4.50%
S Sulfur 0.03
N Nitrogen --
Fe Iron Balance
317LM Chemical Composition
Element Percent by Weight
C Carbon 3.00%
Mn Manganese 200.00%
Si Silicon 100.00%
Cr Chromium 18.00 - 20.00
Ni Nickel 12.00 - 16.00
Mo Molybdenum 4.00 - 4.5.00
P Phosphorus 4.50%
S Sulfur 0.03
N Nitrogen --
Fe Iron Balance
317LMN Chemical Composition
Element Percent by Weight
C Carbon 3.00%
Mn Manganese 200.00%
Si Silicon 75.00%
Cr Chromium 17.00 - 20.00
Ni Nickel 13.70 - 17.50
Mo Molybdenum 4.00 - 5.00
P Phosphorus 4.50%
S Sulfur 0.03
N Nitrogen 0.1 - 0.2
Fe Iron Balance

Physical Properties of 317L Stainless Steel

Property

Value

Density lb/in3

0.285

Thermal Conductivity, Btu/ft hr°F

8.7

Electrical Resistivity, Ω-inch

33.5 x 10- 6

Mechanical Properties of 317L Stainless Steel

Property

Value

ASTM

Ultimate Tensile Strength, ksi

89

75 min

0.2% Offset Yield Strength, ksi

46

30 min

Elongation in 2 inches, %

53

40 min

Hardness, Rockwell B

80

95 max


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The technical data provided is for information only and not for design purposes. It is not warranted or guaranteed.