Cold Formed Heads

[JBW76]

At what (ballpark) temperature are "Cold"- formed heads spun/formed at??

Can they be heat treated after being cold formed and THEN welded to the vessel Shell.

I'm trying to avoid heat treating the entire Pressure Vessel and I'm stuck using these cold formed heads.

 

[metengr]

At what (ballpark) temperature are "Cold"- formed heads spun/formed at??

Below 900 deg F for steel/low alloy steel

Can they be heat treated after being cold formed and THEN welded to the vessel Shell.

Yes. They can be subjected to a re-normalization heat treatment or subcritical thermal treatment per UCS-56.