Ratings for Socket Welded Valves

Hi Guys;

Can anyone tell me that If I orderded a socket welded valve of CS 1000#. Then what will be the class of that valve provided to me by vendor.

How can we decide the class of socket welded valves in a given Pressure Temperature conditions. Are the tables provided in ASME B16.34 are also applicable to socket welded valves.

Thanks;