Thursday, March 1, 2018

Re: [MW:27426] regarding precautions to be taken while conducting PQR

there is no reason to use ER80SNi1, you should also use E7018-1

2018-02-04 7:17 GMT+02:00 Nadakuditi kiran kumar <kinnu78@gmail.com>:
Dear sirs,

We are going to conduct PQR for 3" x 5.49 mm with root ER 80S Ni1(Process - GTAW), fillup & final with E 7018 C3L (Process - SMAW) for LTCS pipe in our ongoing project. In the same project other company conduct same PQR but failed in impact test. As impact test conducted at -50 deg., Celsius.

What are the precautions to be taken to conduct PQR without fail in impact test. As we purchased our electrodes which already impact test qualified at -50  deg., Celsius. 

Appreciate your valuable suggestions.

thanks in advance  

N.Kiran kumar,

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Dr. Georgios Dilintas,
Dipl. Ing. In Aeronautic and Space Engineering
Ph.D in Mechanics of Solids - Computational Mechanics
A.I.S, A.N.I, IRCA Lead Auditor
Welding, Stress Analysis, Corrosion, QA/QC, Failure Analysis, Risk Analysis

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