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ASTM A959:2011 N08926 Steel: Specifications & Listings

ASTM A959:2011 N08926: Austenitic stainless steel grade (UNS N08926) with the composition limits of ASTM A959-11. Carbon up to 0.020% and chromium 19.0-21.0%.

Category: Stainless Steel
Grade Details
GradeASTM A959:2011 N08926
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 A240/A240M N08926 ASTM A240/A240M:2025 USA No activity yet
EN 10088-1 X1NiCrMoCuN25-20-7 EN 10088-1:2023 Europe (CEN) No activity yet
EN 10088-3 X1NiCrMoCuN25-20-7 EN 10088-3:2014 Europe No activity yet
IS 6603 X01Ni25Cr20Mo7CuN IS 6603:2024 India No activity yet
ASTM A240/A240M N08925 ASTM A240/A240M:2025 USA No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
ASTM A240/A240M N08926 ASTM A240/A240M:2025 Strong Match
ASTM A276/A276M N08926 ASTM A276/A276M:2017 Strong Match
EN 10088-1 X1NiCrMoCuN25-20-7 EN 10088-1:2023 Strong Match
EN 10088-1 X1NiCrMoCuN25-20-7 EN 10088-1:2014 Strong Match
EN 10088-3 X1NiCrMoCuN25-20-7 EN 10088-3:2014 Strong Match
EN 10088-2 X1NiCrMoCuN25-20-7 EN 10088-2:2014 Strong Match
IS 6603 X01Ni25Cr20Mo7CuN IS 6603:2024 Strong Match
ASTM A240/A240M N08925 ASTM A240/A240M:2025 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 Cu Mn Mo N Ni P S Si
<=0.020 19.0-21.0 0.50-1.50 <=2.00 6.0-7.0 0.15-0.25 24.0-26.0 <=0.030 <=0.010 <=0.50

More data from ASTM A959:2011

From the standard
Other composition limits from Table 1 and its footnotes
UNS number
N08926
Metallurgical class
Austenitic grade: usually predominantly face-centered cubic, hardenable only by cold working
Type
No type number is printed; the grade is identified by its UNS number only
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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