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ASTM A959:2011 XM-15 (S30310) Steel: Specifications & Listings

ASTM A959:2011 XM-15 (S30310): Austenitic stainless steel type XM-15 (UNS S30310) with the composition limits of ASTM A959-11. Carbon up to 0.15% and chromium 17.0-19.0%.

Category: Stainless Steel
Grade Details
GradeASTM A959:2011 XM-15 (S30310)
Standard ASTM A959:2011
ApplicationsWrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
ASTM A959 303 ASTM A959:2011 Close Alternative
ASTM A959 303Se ASTM A959:2011 Close Alternative
IS 1570 (Part 5) X07Cr18Ni9 IS 1570 (Part 5):1985 Close Alternative
IS 6911 X07Cr18Ni9 IS 6911:1992 Close Alternative
BS 970 (Part 3) 303S31 BS 970 (Part 3):1991 Close Alternative
BS 970 (Part 3) 303S42 BS 970 (Part 3):1991 Close Alternative
IS 6603 X10Cr18Ni9S IS 6603:2024 Close Alternative
BS 970 (Part 1) 302S31 BS 970 (Part 1):1991 Close Alternative
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 17.0-19.0 2.5-4.5 7.0-9.0 <=0.20 >=0.25 <=1.00

More data from ASTM A959:2011

From the standard
Other composition limits from Table 1 and its footnotes
UNS number
S30310
Metallurgical class
Austenitic grade: usually predominantly face-centered cubic, hardenable only by cold working
Type
XM-15 (numbering system developed and applied by ASTM)
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. Type XM-15 is printed for both S30310 and S38100; the UNS number is added to the name.
Source: ASTM A959:2011, Table 1 and its footnotes

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