P4 to P5A PWHT : Varying thicknesses
P4 to P5A PWHT : Varying thicknesses
(OP)
We have a 1.813" M.W bottle header ( Existing ) P4A
Welding to a 1.75" M.W new bottle header spool piece ( New ) P5A
My question is - Obviously we go with the higher material grade for the PWHT procedure ( P5A ) , but should I also use the bigger thickness ( 1.813" instead of 1.750" ) for my soak time ? ( 1:45 mins as opposed to 2 hours ) I know this is a negligable amount of time but I was wondering for future reference should it involve thicker sections.
Thank you very much in advance
Welding to a 1.75" M.W new bottle header spool piece ( New ) P5A
My question is - Obviously we go with the higher material grade for the PWHT procedure ( P5A ) , but should I also use the bigger thickness ( 1.813" instead of 1.750" ) for my soak time ? ( 1:45 mins as opposed to 2 hours ) I know this is a negligable amount of time but I was wondering for future reference should it involve thicker sections.
Thank you very much in advance





RE: P4 to P5A PWHT : Varying thicknesses
I'm hedging my answer there, but I can think of no exceptions to that rule.
RE: P4 to P5A PWHT : Varying thicknesses
RE: P4 to P5A PWHT : Varying thicknesses
(A) For full penetration butt welds , the nominal thickness is the thinner of the parts being joined.
It was looking me right in the face under the P1 PWHT table. Thanks for the direction metengr
RE: P4 to P5A PWHT : Varying thicknesses
RE: P4 to P5A PWHT : Varying thicknesses
RE: P4 to P5A PWHT : Varying thicknesses
P1=SA106-B or C, P4= SA335P11, P5A=SA335P22, A182F22, P5B A217C5, P15E=A182F91, A335P91,A217C12A. Can anybody help
Thank you
RE: P4 to P5A PWHT : Varying thicknesses
Does it need PWHT if its P.NO-1????
RE: P4 to P5A PWHT : Varying thicknesses