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ASTM A240/A240M:2025 N08811 Steel: Specifications & Listings

ASTM A240/A240M:2025 N08811: N08811: austenitic (chromium-nickel or chromium-manganese-nickel) stainless steel plate, sheet and strip (UNS number, no type name printed). Specified in ASTM A240/A240M:2025.

Category: Stainless Steel
Grade Details
GradeASTM A240/A240M:2025 N08811
Standard ASTM A240/A240M:2025
ApplicationsPressure vessels and general applications (plate, sheet and strip)
Equivalent / Similar Grades
Grade Standard Region Live on M-EX
ASTM A959 800 ASTM A959:2011 USA No activity yet
ASTM A959 800H ASTM A959:2011 USA No activity yet
ASTM A959 N08811 ASTM A959:2011 USA No activity yet
ASTM A240/A240M N08810 ASTM A240/A240M:2025 USA No activity yet
EN 10088-1 X10NiCrAlTi32-21 EN 10088-1:2014 Europe (CEN) No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
ASTM A276/A276M N08811 ASTM A276/A276M:2017 Strong Match
ASTM A959 N08811 ASTM A959:2011 Strong Match
ASTM A240/A240M N08810 ASTM A240/A240M:2025 Strong Match
ASTM A276/A276M N08810 ASTM A276/A276M:2017 Strong Match
ASTM A959 800H ASTM A959:2011 Strong Match
ASTM A959 800 ASTM A959:2011 Strong Match
EN 10088-1 X10NiCrAlTi32-21 EN 10088-1:2014 Strong Match
EN 10088-1 X10NiCrAlTi32-21 EN 10088-1:2023 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 Mn P S Si Cr Ni Cu Fe Ti Al
0.06-0.10 <=1.50 <=0.040 <=0.015 <=1.00 19.0-23.0 30.0-35.0 <=0.75 >=39.5 0.25-0.60 0.25-0.60
Mechanical Properties
Tensile Strength >=450 MPa
Yield Strength >=170 MPa
Elongation >=30%
Condition Plate, sheet and strip; yield by 0.2 percent offset

More data from ASTM A240/A240M:2025

From the standard
Mechanical properties 1 condition(s)
Product or thicknessTensile strength, min (MPa)Yield strength, min (MPa)Elongation in 50 mm, min (%)
All45017030
Minimum values; yield strength by the 0.2 percent offset method.
Source: ASTM A240/A240M:2025, Table 2
Cold bend 1 value
Cold bend angle
not required
Bend tests are not required for chromium steels thicker than 1 in. [25 mm] or for any austenitic or duplex steel regardless of thickness.
Source: ASTM A240/A240M:2025, Table 2

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