Wednesday, September 5, 2012

[MW:15222] RE: 15221] Post Heating if PWHT delayed on Cr-Mo Steels

Hi,

PWHT for Cr-Mo steels may be delayed subject to, material grade being
welded, thickness, welding process, design requirements etc.
Would you please clarify the above.

Thanks

Pradip Goswami,P.Eng.IWE
Welding & Metallurgical Specialist
Ontario, Canada.
Email-pgoswami@sympatico.ca,
pgoswami@quickclic.net

-----Original Message-----
From: materials-welding@googlegroups.com
[mailto:materials-welding@googlegroups.com] On Behalf Of
kulandaivel__subramani_
Sent: Wednesday, September 05, 2012 5:50 AM
To: materials-welding@googlegroups.com
Subject: [MW:15221] Post Heating if PWHT delayed on Cr-Mo Steels

Post Heating to a certain temperature and time is normally required on Cr-Mo
Steels if PWHT cannot be done immediately after the wedling completion.

Is this only the project specification requirement or the code requirement.
ANSI B31.3 for process piping do not specify this.

Any one can clarify this please.

Subramani.

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No comments:

[MW:34820] RE: 34813] Clarification in Rate of heating and cooling.

Hello,   Please see the response below.   Regards.   P. Goswami, P. Eng, IWE.   From: materials-welding@googlegroups.com <materials-weld...