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
0.95-1.05
2.80-3.20
<=0.030
<=0.030
0.10-0.70
0.90-1.40
0.90-1.40
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