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ASTM A959:2011 XM-34 Steel: Specifications & Listings

ASTM A959:2011 XM-34: Ferritic stainless steel type XM-34 (UNS S18200) with the composition limits of ASTM A959-11. Carbon up to 0.08% and chromium 17.5-19.5%.

Category: Stainless Steel
Grade Details
GradeASTM A959:2011 XM-34
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
IS 11169 (Part 2) X04Cr17Mo1 IS 11169 (Part 2):2023 Close Alternative
IS 6603 X04Cr17Mo1 IS 6603:2024 Close Alternative
EN 10088-1 X6CrMo17-1 EN 10088-1:2014 Close Alternative
EN 10088-1 X6CrMo17-1 EN 10088-1:2023 Close Alternative
EN 10088-3 X6CrMo17-1 EN 10088-3:2014 Close Alternative
EN 10088-2 X6CrMo17-1 EN 10088-2:2014 Close Alternative
EN 10088-1 X6CrMoNb17-1 EN 10088-1:2014 Close Alternative
EN 10088-1 X6CrMoNb17-1 EN 10088-1:2023 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 Mo P S Si
<=0.08 17.5-19.5 <=2.50 1.50-2.50 <=0.040 >=0.15 <=1.00

More data from ASTM A959:2011

From the standard
Other composition limits from Table 1 and its footnotes
UNS number
S18200
Metallurgical class
Ferritic grade: body-centered cubic, little or no tempered martensite, hardenable only slightly by cold working
Type
XM-34 (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.
Source: ASTM A959:2011, Table 1 and its footnotes

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