[MW:4874] requirements for PWHT

Hi Manpreet,

If your welds are falling under lethal requirements as per UW-2, then it requires PWHT irrespective of thickness welded.

 

If lethal requirements or any additional requirements such as NACE or API or any clients' specification are not  applicable, the the following guidelines stated below would apply.

 

PWHT criteria could be set forth as per the design code or any additional specification. Always specifications are  more demanding that ASME or other design codes.

 

Thanks.

 

 

Pradip Goswami,P.Eng.

Welding & Metallurgical Engineer/Specialist

Email-pgoswami@sympatico.ca

Email-pgoswami@quickclic.net

 

On Sat, Apr 17, 2010 at 5:49 PM, Karthik <karthik6684@yahoo.com> wrote

hi, as per aASME section-VIII-UCS56,if the welded joint nominal thickness, thickness more than 38mm shall be PWHT. As per ASME Section-1,PW-39.Welded joint thickness more than 19mm shall be PWHT.Pls.Refer with the applicable code.   Karthikeyan.S   Getabec Energy Co.,Ltd. 379,Moo6,Soi8,Nikhomphatana, Rayong-21180, Thailand. Phone: 0066 38 897035-8 (Off) Fax: 0066 38 897034 Hand Phone: 0066 892512282 --- On Sat, 4/17/10, manpreet <manpreetsin88@rediffmail.com> wrote: From: manpreet <manpreetsin88@rediffmail.com> Subject: [MW:4838] requirements for PWHT To: materials-welding@googlegroups.com Date: Saturday, April 17, 2010, 12:22 PM Dear All My case is that P1 group Gr.no.2 ,thickness-(16 to 200) Welding process -SAW Is it required to do PWHT & also the appropriate code & standards if it is required. Regards Manpreet Singh 09867303228