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ASTM A240/A240M:2025 S30815 Steel: Specifications & Listings

ASTM A240/A240M:2025 S30815: S30815: 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 S30815
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 S30815 ASTM A959:2011 USA No activity yet
EN 10088-1 X9CrNiSiNCe21-11-2 EN 10088-1:2014 Europe (CEN) No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
ASTM A959 S30815 ASTM A959:2011 Strong Match
ASTM A276/A276M S30815 ASTM A276/A276M:2017 Strong Match
EN 10088-1 X9CrNiSiNCe21-11-2 EN 10088-1:2014 Strong Match
EN 10088-1 X9CrNiSiNCe21-11-2 EN 10088-1:2023 Strong Match
EN 10088-1 X6CrNiSiNCe19-10 EN 10088-1:2014 Close Alternative
EN 10088-1 X6CrNiSiNCe19-10 EN 10088-1:2023 Close Alternative
ASTM A959 308 ASTM A959:2011 Close Alternative
ASTM A959 321H 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 Mn P S Si Cr Ni N Ce
0.05-0.10 <=0.80 <=0.040 <=0.030 1.40-2.00 20.0-22.0 10.0-12.0 0.14-0.20 0.03-0.08
Mechanical Properties
Tensile Strength >=600 MPa
Yield Strength >=310 MPa
Elongation >=40%
Hardness <=217 HB
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 (%)
All60031040
Minimum values; yield strength by the 0.2 percent offset method.
Source: ASTM A240/A240M:2025, Table 2
Hardness 1 condition(s)
Product or thicknessBrinell HBW, maxRockwell, max
All21795 HRBW
Maximum values; either Brinell or Rockwell scale may be used.
Source: ASTM A240/A240M:2025, Table 2

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