Thank you all for all your replies.
At the end, we are going to proceed with a new WPQR including impact test at 4.2K as the minimum operating temperature is 4.2K and new filler specific for cryogenic application with FN =3
Hello All,
I have being working on a new design for a helium vessel 316L parent material with welding filler 316LSi. We have carried out the impact Charpy V test for a PQR at 77K following the design standard EN ISO 13445. Following this design standard we strongly believe we comply with PED as...