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ASTM A959:2011 205 Steel: Specifications & Listings

ASTM A959:2011 205: Austenitic stainless steel type 205 (UNS S20500) with the composition limits of ASTM A959-11. Carbon 0.12-0.25% and chromium 16.5-18.0%.

Category: Stainless Steel
Grade Details
GradeASTM A959:2011 205
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
ASTM A276/A276M S20500 ASTM A276/A276M:2017 USA No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
ASTM A276/A276M S20500 ASTM A276/A276M:2017 Strong Match
ASTM A959 XM-28 ASTM A959:2011 Close Alternative
ASTM A276/A276M S24100 ASTM A276/A276M:2017 Close Alternative
IS 6603 X13Mn13Cr18N IS 6603:2024 Close Alternative
EN 10088-1 X13CrMnNiN18-13-2 EN 10088-1:2014 Close Alternative
EN 10088-1 X13CrMnNiN18-13-2 EN 10088-1:2023 Close Alternative
EN 10088-3 X13MnNiN18-13-2 EN 10088-3:2014 Close Alternative
ASTM A959 XM-29 ASTM A959:2011 Close Alternative
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 N Ni P S Si
0.12-0.25 16.5-18.0 14.0-15.0 0.32-0.40 1.00-1.75 <=0.060 <=0.030 <=1.00

More data from ASTM A959:2011

From the standard
Other composition limits from Table 1 and its footnotes
UNS number
S20500
Metallurgical class
Austenitic grade: usually predominantly face-centered cubic, hardenable only by cold working
Type
205 (designation originally assigned by the American Iron and Steel Institute)
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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