Stress corrosion cracking (SCC) growth rates of 316L stainless steel cold-worked by one-dimensional (1D) rolling and quasi-three dimensional (3D) rolling are measured in simulated PWR primary water environments. In a simulated PWR primary water with a dissolved hydrogen (DH) concentration of 30cc STP H2/kg H2O, 1-D rolled 316L SS shows extensive intergranular SCC, while 3-D rolled 316L SS shows local SCC. A significantly higher growth rate was observed in a 1-D rolled 316L SS than those in 3-D rolled 316L SSs at similar yield strength levels. Crack growth is controlled by thermally activation processes in the temperature range of 290-320°C. Lowering the dissolved hydrogen concentration from 30cc to 0cc STP H 2/kg H2O significantly increases CGR (by about 10 times). The enhancement factor on crack growth by unloading/reloading procedure during trapezoidal loading increases with shortening the holding time.