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ASTM A959:2011 414 Steel: Specifications & Listings

ASTM A959:2011 414: Martensitic stainless steel type 414 (UNS S41400) with the composition limits of ASTM A959-11. Carbon up to 0.15% and chromium 11.5-13.5%.

Category: Stainless Steel
Grade Details
GradeASTM A959:2011 414
Standard ASTM A959:2011
ApplicationsWrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Equivalent / Similar Grades
Grade Standard Region Live on M-EX
ASTM A276/A276M S41400 ASTM A276/A276M:2017 USA No activity yet
IS 1570 (Part 5) X12Cr12 IS 1570 (Part 5):1985 India No activity yet
ASTM A240/A240M S41000 ASTM A240/A240M:2025 USA No activity yet
BS 970 (Part 1) 410S21 BS 970 (Part 1):1991 UK No activity yet
IS 6603 X04Cr12 IS 6603:2024 India No activity yet
IS 6603 X12Cr13 IS 6603:2024 India No activity yet
EN 10088-3 X12Cr13 EN 10088-3:2014 Europe No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
ASTM A276/A276M S41400 ASTM A276/A276M:2017 Strong Match
IS 1570 (Part 5) X12Cr12 IS 1570 (Part 5):1985 Strong Match
IS 6911 X12Cr12 IS 6911:1992 Strong Match
ASTM A240/A240M S41000 ASTM A240/A240M:2025 Strong Match
BS 970 (Part 1) 410S21 BS 970 (Part 1):1991 Strong Match
BS 970 (Part 3) 410S21 BS 970 (Part 3):1991 Strong Match
BS 970 (Part 1) 410S21 BS 970 (Part 1):1983 Strong Match
IS 6603 X04Cr12 IS 6603:2024 Strong Match
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C Cr Mn Ni P S Si
<=0.15 11.5-13.5 <=1.00 1.25-2.50 <=0.040 <=0.030 <=1.00

More data from ASTM A959:2011

From the standard
Other composition limits from Table 1 and its footnotes
UNS number
S41400
Metallurgical class
Martensitic grade: can be hardened by heat treating and quenching and then tempered; delivered annealed or hardened and tempered
Type
414 (designation originally assigned by the American Iron and Steel Institute)
Values
Maximum unless a range or minimum is shown; where two limits are shown for the same element in one grade the more stringent applies
These are the recommended composition limits of the A959 guide, intended for adoption by standards for stainless steel products; they are not a product specification.
Source: ASTM A959:2011, Table 1 and its footnotes

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