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ASTM A959:2011 429 Steel: Specifications & Listings

ASTM A959:2011 429: Ferritic stainless steel type 429 (UNS S42900) with the composition limits of ASTM A959-11. Carbon up to 0.12% and chromium 14.0-16.0%.

Category: Stainless Steel
Grade Details
GradeASTM A959:2011 429
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 A240/A240M S42900 ASTM A240/A240M:2025 USA No activity yet
ASTM A276/A276M S43000 ASTM A276/A276M:2017 USA No activity yet
IS 11169 (Part 2) X07Cr17 IS 11169 (Part 2):1989 India No activity yet
IS 1570 (Part 5) X04Cr12 IS 1570 (Part 5):1985 India No activity yet
IS 11169 (Part 2) X04Cr17 IS 11169 (Part 2):2023 India No activity yet
EN 10088-3 X6Cr13 EN 10088-3:2014 Europe No activity yet
EN 10088-1 X6Cr17 EN 10088-1:2014 Europe (CEN) No activity yet
EN 10088-3 X6Cr17 EN 10088-3:2014 Europe No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
ASTM A240/A240M S42900 ASTM A240/A240M:2025 Strong Match
ASTM A276/A276M S42900 ASTM A276/A276M:2017 Strong Match
ASTM A959 430 ASTM A959:2011 Strong Match
ASTM A276/A276M S43000 ASTM A276/A276M:2017 Strong Match
IS 11169 (Part 2) X07Cr17 IS 11169 (Part 2):1989 Strong Match
ASTM A959 SS410 ASTM A959:2011 Strong Match
IS 1570 (Part 5) X04Cr12 IS 1570 (Part 5):1985 Strong Match
IS 11169 (Part 2) X04Cr17 IS 11169 (Part 2):2023 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 P S Si
<=0.12 14.0-16.0 <=1.00 <=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
S42900
Metallurgical class
Ferritic grade: body-centered cubic, little or no tempered martensite, hardenable only slightly by cold working
Type
429 (common type number, not a trademark, widely used; not associated with any one product)
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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