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ASTM A240/A240M:2025 S20161 Steel: Specifications & Listings

ASTM A240/A240M:2025 S20161: S20161: 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 S20161
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 S20161 ASTM A959:2011 USA No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
ASTM A276/A276M S20161 ASTM A276/A276M:2017 Strong Match
ASTM A959 S20161 ASTM A959:2011 Strong Match
ASTM A959 201 ASTM A959:2011 Related Material
ASTM A959 202 ASTM A959:2011 Related Material
ASTM A959 S20430 ASTM A959:2011 Related Material
ASTM A959 S21800 ASTM A959:2011 Related Material
ASTM A959 301 ASTM A959:2011 Related Material
BS 970 EN60 BS 970:1955 Related Material
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
<=0.15 4.00-6.00 <=0.040 <=0.040 3.00-4.00 15.0-18.0 4.0-6.0 0.08-0.20
Mechanical Properties
Tensile Strength >=860 MPa
Yield Strength >=345 MPa
Elongation >=40%
Hardness <=255 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 (%)
All86034540
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
All25525 HRC
Maximum values; either Brinell or Rockwell scale may be used.
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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