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ASTM A959:2011 S41425 Steel: Specifications & Listings

ASTM A959:2011 S41425: Martensitic stainless steel grade (UNS S41425) with the composition limits of ASTM A959-11. Carbon up to 0.05% and chromium 12.0-15.0%.

Category: Stainless Steel
Grade Details
GradeASTM A959:2011 S41425
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 S41425 ASTM A276/A276M:2017 USA No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
ASTM A276/A276M S41425 ASTM A276/A276M:2017 Strong Match
ASTM A959 S41500 ASTM A959:2011 Related Material
ASTM A240/A240M S41500 ASTM A240/A240M:2025 Related Material
ASTM A276/A276M S41500 ASTM A276/A276M:2017 Related Material
IS 6603 X03Cr27Ni5Mo2N IS 6603:2024 Related Material
EN 10088-1 X3CrNiMoN27-5-2 EN 10088-1:2014 Related Material
EN 10088-1 X3CrNiMoN27-5-2 EN 10088-1:2023 Related Material
EN 10088-3 X3CrNiMoN27-5-2 EN 10088-3:2014 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 Cr Cu Mn Mo N Ni P S Si
<=0.05 12.0-15.0 <=0.30 0.50-1.00 1.50-2.00 0.06-0.12 4.0-7.0 <=0.020 <=0.005 <=0.50

More data from ASTM A959:2011

From the standard
Other composition limits from Table 1 and its footnotes
UNS number
S41425
Metallurgical class
Martensitic grade: can be hardened by heat treating and quenching and then tempered; delivered annealed or hardened and tempered
Type
No type number is printed; the grade is identified by its UNS number only
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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