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ASTM A959:2011 317LN Steel: Specifications & Listings

ASTM A959:2011 317LN: Austenitic stainless steel type 317LN (UNS S31753) with the composition limits of ASTM A959-11. Carbon up to 0.030% and chromium 18.0-20.0%.

Category: Stainless Steel
Grade Details
GradeASTM A959:2011 317LN
Standard ASTM A959:2011
ApplicationsWrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Equivalent / Similar Grades
Grade Standard Region Live on M-EX
JIS G4304 SUS317LN JIS G4304:2021 Japan No activity yet
ASTM A240/A240M S31753 ASTM A240/A240M:2025 USA No activity yet
IS 6603 X02Cr18Ni12Mo3N IS 6603:2024 India No activity yet
JIS G4304 SUS317L JIS G4304:2021 Japan No activity yet
EN 10088-1 X2CrNiMoN18-12-4 EN 10088-1:2014 Europe (CEN) No activity yet
ASTM A240/A240M S31703 ASTM A240/A240M:2025 USA No activity yet
EN 10088-2 X2CrNiMoN18-12-4 EN 10088-2:2014 Europe No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
JIS G4304 SUS317LN JIS G4304:2021 Strong Match
JIS G4305 SUS317LN JIS G4305:2012 Strong Match
ASTM A240/A240M S31753 ASTM A240/A240M:2025 Strong Match
IS 6603 X02Cr18Ni12Mo3N IS 6603:2024 Strong Match
ASTM A959 317L ASTM A959:2011 Strong Match
JIS G4304 SUS317L JIS G4304:2021 Strong Match
JIS G4305 SUS317L JIS G4305:2012 Strong Match
EN 10088-1 X2CrNiMoN18-12-4 EN 10088-1:2014 Strong Match
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C Cr Mn Mo N Ni P S Si
<=0.030 18.0-20.0 <=2.00 3.0-4.0 0.10-0.22 11.0-14.0 <=0.045 <=0.030 <=1.00

More data from ASTM A959:2011

From the standard
Other composition limits from Table 1 and its footnotes
UNS number
S31753
Metallurgical class
Austenitic grade: usually predominantly face-centered cubic, hardenable only by cold working
Type
317LN (common type number, not a trademark, widely used; not associated with any one product)
Values
Maximum unless a range or minimum is shown; where two limits are shown for the same element in one grade the more stringent applies
These are the recommended composition limits of the A959 guide, intended for adoption by standards for stainless steel products; they are not a product specification.
Source: ASTM A959:2011, Table 1 and its footnotes

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