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ASTM A240/A240M:2025 S44330 Steel: Specifications & Listings

ASTM A240/A240M:2025 S44330: S44330: ferritic or martensitic (chromium) stainless steel plate, sheet and strip (UNS number, no type name printed). Specified in ASTM A240/A240M:2025. Combined limit (percent): Ti + Nb at most 0.80.

Category: Stainless Steel
Grade Details
GradeASTM A240/A240M:2025 S44330
Standard ASTM A240/A240M:2025
ApplicationsPressure vessels and general applications (plate, sheet and strip)
Equivalent / Similar Grades
Grade Standard Region Live on M-EX
EN 10088-1 X2CrNbCu21 EN 10088-1:2014 Europe (CEN) No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
EN 10088-1 X2CrNbCu21 EN 10088-1:2014 Strong Match
EN 10088-1 X2CrNbCu21 EN 10088-1:2023 Strong Match
EN 10088-1 X2CrNbTi20 EN 10088-1:2014 Close Alternative
EN 10088-1 X2CrNbTi20 EN 10088-1:2023 Close Alternative
ASTM A959 S44535 ASTM A959:2011 Close Alternative
EN 10088-1 X2CrCuNbTiV22-1 EN 10088-1:2023 Close Alternative
ASTM A959 S43940 ASTM A959:2011 Related Material
EN 10088-1 X2CrTi12 EN 10088-1:2014 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 N Cu
<=0.025 <=1.00 <=0.040 <=0.030 <=1.00 20.0-23.0 <=0.025 0.30-0.80
Mechanical Properties
Tensile Strength >=390 MPa
Yield Strength >=205 MPa
Elongation >=22%
Hardness <=187 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 (%)
All39020522
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
All18790 HRBW
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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