Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C
Si
Mn
P
S
Ni
Cr
<=0.08
3.00-5.00
<=2.00
<=0.045
<=0.030
11.50-15.00
15.00-20.00
Mechanical Properties
Tensile Strength
>=520 MPa
Yield Strength
>=205 MPa
Elongation
>=40%
Hardness
<=207 HB
Condition
Solution heat treated plate and strip; 0.2 percent proof strength applies only when specified by the purchaser