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ASTM A959:2011 310HCb Steel: Specifications & Listings

ASTM A959:2011 310HCb: Austenitic stainless steel type 310HCb (UNS S31041) with the composition limits of ASTM A959-11. Carbon 0.04-0.10% and chromium 24.0-26.0%.

Category: Stainless Steel
Grade Details
GradeASTM A959:2011 310HCb
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 S31009 ASTM A240/A240M:2025 USA No activity yet
ASTM A240/A240M S31041 ASTM A240/A240M:2025 USA No activity yet
IS 1570 (Part 5) X04Cr25Ni20 IS 1570 (Part 5):1985 India No activity yet
BS 970 (Part 1) 310S31 BS 970 (Part 1):1991 UK No activity yet
ASTM A240/A240M S31008 ASTM A240/A240M:2025 USA No activity yet
IS 6603 X12Cr25Ni20 IS 6603:2024 India No activity yet
EN 10088-1 X6CrNi25-20 EN 10088-1:2014 Europe (CEN) No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
ASTM A959 310H ASTM A959:2011 Strong Match
ASTM A240/A240M S31009 ASTM A240/A240M:2025 Strong Match
ASTM A959 310S ASTM A959:2011 Strong Match
ASTM A959 310Cb ASTM A959:2011 Strong Match
ASTM A959 310HCbN ASTM A959:2011 Strong Match
ASTM A240/A240M S31041 ASTM A240/A240M:2025 Strong Match
IS 1570 (Part 5) X04Cr25Ni20 IS 1570 (Part 5):1985 Strong Match
BS 970 (Part 1) 310S31 BS 970 (Part 1):1991 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
0.04-0.10 24.0-26.0 <=2.00 19.0-22.0 <=0.045 <=0.030 <=1.00

More data from ASTM A959:2011

From the standard
Other composition limits from Table 1 and its footnotes
UNS number
S31041
Metallurgical class
Austenitic grade: usually predominantly face-centered cubic, hardenable only by cold working
Type
310HCb (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
Other elements (as printed)
Cb 10xC-1.10
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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