Study on Deterioration Characteristics of Low-Carbon Steel’s Mechanical Properties and Fracture Mechanism under Marine Engineering Environment

Table 1

Microelements and mass scores ( %) in Q345 steel.

Microelements	C	Si	Mn	P	S	V	Nb	Ti	Cr	Ni	Cu
(%)	0.20	0.50	1.70	0.035	0.035	0.15	0.07	0.20	0.30	0.50	0.30