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Re: [MW:35809] PWHT Requirements for WPS

By Materials & Welding
Dear

Requalification is required,  refer QW 407.2 (supplementary Essential Veritable) of Sec ix 

Regards,
CH V RAMANA 
BVIL

On Wednesday 10 September, 2025 at 04:59:12 pm IST, pankaj pachahara <pankajpachahara@gmail.com> wrote:


According to ASME section VIII Div 1, yes we have impact requirement at -20°C. 

On Mon, 8 Sep 2025 at 5:23 PM, 'venkat chikkala' via Materials & Welding <materials-welding@googlegroups.com> wrote:
Dear,

What is the design code and what about impact requirements of Job.

Regards,
CH V RAMANA 
BVIL

On Monday 8 September, 2025 at 03:39:45 pm IST, pankaj pachahara <pankajpachahara@gmail.com> wrote:


Dear Expert,

I have a WPS for SMAW+SAW process Material SA 516 GR.60/70 with PWHT requirements of 631°C temperature and 450 minutes holding time. 

Now, I have a new project with PWHT requirements of 600±25°C temperature and 3 hours holding time.

Can I use the existing WPS for this new project? What is the acceptable deviation (±) for PWHT requirements?

Looking forward to your guidance.

Best regards,
Pankaj Choudhary 

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