Ref. to SSC (Sulphide Stress Cracking) qualification, you have provided very limited info. both on the qualification and the intended application.
Refer Table B.1 MR 0175 wherein qualification validity includes several parameters like applied stresses, environment, H2S partial pressure, in-situ pH and temperature.
Further, check carefully the material qualification in place is appropriate for the intended application.
Best Regards, Sandeep