Re: [MW:28162] RE: 28154] PWHT required for HF service

Since the thk is more than 38 mm, PWHT is required irrespective of service as per Div.1.

Regards,

Ajay Pathak

On Sat, Aug 4, 2018 at 12:55 AM, PGoswami <pgoswami@quickclic.net> wrote:

If you're following API RP-751, then yes. Look at clause 3.3 of this RP, for guidance on PWHT for HF service. What's the precise service , HF Alkylation?? Ask your client to clarify.

 

Appreciate your response.

 

Thanks.

 

P.Goswami.P.Eng, IWE.

Welding & Metallurgical Specialist

Linkedin: https://www.linkedin.com/in/pradip-goswami-2999855/

Email:pgoswami@quickclic.net,pradip.goswami@gmail.com

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Hrushikesh Sangamnerkar
Sent: August 1, 2018 1:48 AM
To: Materials & Welding <materials-welding@googlegroups.com>
Subject: [MW:28154] PWHT required for HF service

 

Dear expert,

 

Query:

 

Service: HF

MoC: SA 516 Gr 70

P No. - 1

Thickness - 40mm

 

Is PWHT specifically required for HF service?

 

Client has not mentioned anything about Lethal or Sour service.

 

Pl suggest.

 

Regards,

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