Saturday, August 4, 2018

Re: [MW:28169] PWHT required for HF service

Dear Friend,

Is it possible to avoid the martensite structure on HAZ area of base metal during hardafcing? if yes you can eliminate PWHT. During hard facing on 40.0mm thick base metal, more chance are there, martensite will be formed on HAZ area, so PWHT is essential one.  

Regards,
Sankaran.SP
Welding & Metallurgy expert



On Friday, 3 August, 2018, 10:26:10 PM IST, Hrushikesh Sangamnerkar <hrushi612@gmail.com> wrote:


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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