Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C
Mn
P
S
Si
Cr
Mo
0.28-0.40
0.60-1.00
<=0.030
<=0.030
0.20-0.80
1.40-2.00
0.30-0.55
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