Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
Al
B
C
Cb
Cr
Cu
Mn
N
Ni
P
S
Si
0.003-0.030
0.001-0.010
0.07-0.13
0.20-0.60
17.0-19.0
2.5-3.5
<=0.50
0.05-0.12
7.5-10.5
<=0.045
<=0.030
<=0.30
More data from ASTM A959:2011
From the standard
Other composition limitsfrom Table 1 and its footnotes
UNS number
S30432
Metallurgical class
Austenitic grade: usually predominantly face-centered cubic, hardenable only by cold working
Type
No type number is printed; the grade is identified by its UNS number only
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 0.20-0.60, Al 0.003-0.030, B 0.001-0.010
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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