SCC Propagation of X60 Pipeline Steel in Simulated Seawater Environment

The crack propagation experiment of X60 pipeline steel in simulated seawater environment was conducted,the results show that the critical stress intensity factor of stress corrosion KISCC of the X60 pipeline steel in 31.3 g/L NaCl solution was 76.4708 MPam,and the crack growth rate da/dt was 6.4×10-7 mm/s.