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ASTM A959:2011 302B Steel: Specifications & Listings

ASTM A959:2011 302B: Austenitic stainless steel type 302B (UNS S30215) 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 302B
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 S30215 ASTM A276/A276M:2017 USA No activity yet
JIS G4304 SUS302B JIS G4304:2021 Japan No activity yet
BS 970 EN58B BS 970:1955 UK No activity yet
BS 970 EN58F BS 970:1955 UK No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
ASTM A276/A276M S30215 ASTM A276/A276M:2017 Strong Match
JIS G4304 SUS302B JIS G4304:2021 Strong Match
JIS G4305 SUS302B JIS G4305:2012 Strong Match
BS 970 EN58B BS 970:1955 Strong Match
BS 970 EN58F BS 970:1955 Strong Match
BS 970 EN58A BS 970:1955 Close Alternative
BS 970 EN58C BS 970:1955 Close Alternative
BS 970 EN58G BS 970:1955 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 N Ni P S Si
<=0.15 17.0-19.0 <=2.00 <=0.10 8.0-10.0 <=0.045 <=0.030 2.00-3.00

More data from ASTM A959:2011

From the standard
Other composition limits from Table 1 and its footnotes
UNS number
S30215
Metallurgical class
Austenitic grade: usually predominantly face-centered cubic, hardenable only by cold working
Type
302B (designation originally assigned by the American Iron and Steel Institute)
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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