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ASTM A959:2011 16-8-2H Steel: Specifications & Listings

ASTM A959:2011 16-8-2H: Austenitic stainless steel type 16-8-2H (UNS S16800) with the composition limits of ASTM A959-11. Carbon 0.05-0.10% and chromium 14.5-16.5%.

Category: Stainless Steel
Grade Details
GradeASTM A959:2011 16-8-2H
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 316H ASTM A959:2011 Close Alternative
ASTM A240/A240M S31609 ASTM A240/A240M:2025 Close Alternative
BS 970 EN58H BS 970:1955 Close Alternative
ASTM A959 SS316 ASTM A959:2011 Close Alternative
IS 1570 (Part 5) X04Cr17Ni12Mo2 IS 1570 (Part 5):1985 Close Alternative
IS 1570 (Part 7) 6Cr17Ni12Mo2H IS 1570 (Part 7):1992 Close Alternative
IS 11169 (Part 2) X04Cr17Ni12Mo2 IS 11169 (Part 2):1989 Close Alternative
IS 11169 (Part 2) X04Cr17Ni12Mo2Ti IS 11169 (Part 2):1989 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 Ni P S Si
0.05-0.10 14.5-16.5 <=2.00 1.50-2.00 7.5-9.5 <=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
S16800
Metallurgical class
Austenitic grade: usually predominantly face-centered cubic, hardenable only by cold working
Type
16-8-2H (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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