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PWHT and NDE
2

PWHT and NDE

PWHT and NDE

(OP)
Hello everyone,

It is our debate with our coworkers that PWHT is another kinds of NDT (non destructive testing).

As we know, PWHT will align microstructure of metal.

Can we consider PWHT as NDT testing of pipe?

Thank you

RE: PWHT and NDE

2
No.

Steve Jones
Corrosion Management Consultant

www.linkedin.com/in/drstevejones

All answers are personal opinions only and are in no way connected with any employer.

RE: PWHT and NDE

Thank you Steve. Where do engineers get such outlandish ideas?

RE: PWHT and NDE

Wrong medications.

RE: PWHT and NDE

I did think that it was a question from a parallel universe where inspection is performed with heating bands.

Steve Jones
Corrosion Management Consultant

www.linkedin.com/in/drstevejones

All answers are personal opinions only and are in no way connected with any employer.

RE: PWHT and NDE

Oh yeah. Where they do freeze joining of pipe instead of welding.

RE: PWHT and NDE



A PWHT is a kind of a vaccine given to a metal throught the heat.That way we rearrange the molecules of the material so that they can support some kind of metalic illness.

luis

RE: PWHT and NDE

No it works more like diaezpam/velium, it keeps the metal from getting stressed out.

RE: PWHT and NDE

1503-44 try to give the metal a Xanax. lol

RE: PWHT and NDE

NDE shall be done before or after PWHT to verify the soundness of metal or weldments. PWHT is not testing techniques. To relieve Residual stresses and to get original properties

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