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ASTM A276/A276M:2017 S21800 Steel: Specifications & Listings

ASTM A276/A276M:2017 S21800: S21800: austenitic stainless steel bars and shapes (UNS number, no type name printed). Specified in ASTM A276/A276M:2017.

Category: Stainless Steel
Grade Details
GradeASTM A276/A276M:2017 S21800
Standard ASTM A276/A276M:2017
ApplicationsStainless steel bars and shapes (hot-finished or cold-finished)
Equivalent / Similar Grades
Grade Standard Region Live on M-EX
ASTM A959 S21800 ASTM A959:2011 USA No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
ASTM A959 S21800 ASTM A959:2011 Strong Match
ASTM A240/A240M S21800 ASTM A240/A240M:2025 Strong Match
IS 1570 (Part 5) X20Cr13 IS 1570 (Part 5):1985 Related Material
IS 1570 (Part 5) X30Cr13 IS 1570 (Part 5):1985 Related Material
ASTM A959 201 ASTM A959:2011 Related Material
ASTM A959 S20161 ASTM A959:2011 Related Material
ASTM A959 202 ASTM A959:2011 Related Material
ASTM A959 S20430 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
<=0.10 7.0-9.0 <=0.060 <=0.030 3.5-4.5 16.0-18.0 8.0-9.0 0.08-0.18
Mechanical Properties
Tensile Strength >=655 MPa
Yield Strength >=345 MPa
Elongation >=35%
Hardness <=241 HB
Condition Condition A (Annealed), hot-finished or cold-finished, all sizes (first row printed)

More data from ASTM A276/A276M:2017

From the standard
Mechanical requirements by condition and size 1 row(s)
ConditionFinishDiameter or thickness, in. [mm]Tensile strength, min (MPa)Yield strength, min (MPa)Elongation, min (%)Reduction of area, min (%)Brinell HBW, max
A (Annealed)hot-finished or cold-finishedall6553453555241
Yield by the 0.2 percent offset method. Hardness is HBW unless otherwise indicated; equivalent Rockwell is permitted.
Source: ASTM A276/A276M:2017, Table 2

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