Re: [MW:34070] Ss to P91 Welding

P91 to SS pipe welding is not a good Engineering practice. Better to weld with any intermediate alloy like P22 piece in between.

On Fri, 17 Mar 2023, 17:55 HerculanJohn, <hjpr820@gmail.com> wrote:

Dear Experts,

We are doing welding for Sa335 P91 to A182 F316 material. As per Wps Gtaw + smaw is welding sequence. 

Filler is ERNICR-3 And ENICrFe3. But Electrode we are using ENiCrFe2. 

During Gtaw welding there was no problem smooth welding but once me started Smaw than the electrode is not getting fused properly material is thrown out. 

We are maintaining proper interpass continously as per Wps. 

Kindly provide us valuable feedback.

Thanks & Regards,

John Rodrigues 

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