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ASTM A240/A240M:2025 S46800 Steel: Specifications & Listings

ASTM A240/A240M:2025 S46800: S46800: 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 S46800
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 .- ASTM A959:2011 USA No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
ASTM A959 .- ASTM A959:2011 Strong Match
ASTM A959 439 ASTM A959:2011 Close Alternative
ASTM A959 S43932 ASTM A959:2011 Close Alternative
ASTM A240/A240M S43035 ASTM A240/A240M:2025 Close Alternative
ASTM A240/A240M S43932 ASTM A240/A240M:2025 Close Alternative
ASTM A959 S44500 ASTM A959:2011 Close Alternative
ASTM A959 304L ASTM A959:2011 Related Material
ASTM A959 304LN ASTM A959:2011 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 Ti Nb
<=0.030 <=1.00 <=0.040 <=0.030 <=1.00 18.0-20.0 <=0.50 <=0.030 0.07-0.30 0.10-0.60
Mechanical Properties
Tensile Strength >=415 MPa
Yield Strength >=205 MPa
Elongation >=22%
Hardness <=90 HRBW
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 (%)
All41520522
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
All-90 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
180 deg
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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