Table 1.

Actual chemical composition of S700MC steel.

Chemical Composition, % by Weight
C	Mn	Si		S	P	Al		Nb	Ti	V		N	Ce
0.056	1.68	0.16		0.005	0.01	0.027		0.044	0.12	0.006		72	0.33
Mechanical properties
Tensile strength Rm, MPa			Yield point Re, MPa				Elongation A5, %				Toughness, J/cm2 (−30 °C)
820			700				17				50
${\mathrm{C}}_{\mathrm{e} }=\mathrm{C}+\frac{\mathrm{Mn}}{6}+\frac{\mathrm{Ni}+\mathrm{Cu}}{15}+\frac{\mathrm{Cr}+\mathrm{Mo}+\mathrm{V}}{5}, (\%)$