Re: [MW:28309] Conflict between ASME Section IX clause QW 404.12 & WQ 404.33

allow me to add that 404.12 is applicable only when impact testing is required by the design & construction code. It appears under the column "supplementary essential variables".

404.33 in all processes, except for resistance welding, appears under the column "non essential variables". For resistance welding is essential

Στις Τρί, 18 Σεπ 2018 στις 7:39 π.μ., ο/η sandeep kumar <sandeepdhiman63@gmail.com> έγραψε:

Thanks Vivek. Its clear my some doubts

On Monday, September 17, 2018 at 3:23:29 PM UTC+3, Patel Vivek wrote:

Hi Sandeep,

404.12 -

1) if impact is applicable ER70SG or ER90SG is a special designation. All " G" is a special filler or electrode we can't use different in WPS. we have to use the same we used during PQR.

 

2) and following things do not require requalification. you can change in the WPS regardless with what you qualified the PQR.

                

While 404.33 -

1) you can switch within SFA classification or use different manufacturer.

2) when organization mentioned something on WPS like E7018-H4R then organization have to use the same. you can not weld with E7018-1. when you mentioned something on WPS means follow the same.

I hope this clears your apprehension on QW-404.12 & QW-404.33.

Regards,

Vivek Patel

On Mon, Sep 17, 2018 at 1:28 PM, sandeep kumar <sandeep...@gmail.com> wrote:

Dear all

Kindly give your views on the interpretation of ASME Section IX clause QW 404.12 & WQ 404.33 when SMAW & GMAW process are concerned.

My point, as both the variables are same for Change in Filler metal classification, QW 404.12 is a supplementary variable while the QW 404.33 is non-essential variables.

There are additional information in QW 404.12 compare to QW 404.33 however focused point i.e. ''A change in the filler metal classification within an SFA specification'' is same.

Thanks a lot.

Regards

Sandeep Kumar

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Warm Regards,
Vivek patel
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Welding, Stress Analysis, Corrosion, QA/QC, Failure Analysis, Risk Analysis

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