J
If a casting is not machined (and nothing said here that it was not), or other type of NDT, then yes, 7.5.2 woud be applicable. As long as the forging had a representative sample forged, and if applicable heat treated, and destructive tested to determine the properties, then, again, yes.
Here is the key "where the resulting output cannot be verified by subsequent monitoring or measurement and, as a consequence, deficiencies become apparent only after the product is in use or the service has been delivered."
Here is the key "where the resulting output cannot be verified by subsequent monitoring or measurement and, as a consequence, deficiencies become apparent only after the product is in use or the service has been delivered."