[MW:29703] AWS D1.1 2015 FCAW, Square Groove weld PJP But joint

Dear All,

I have some Queries as below.

1) PQR is qualified with 1.6 mm diameter(filler wire), but sub vendor is mentioned 1.2 mm  and 1.6 mm diameter both in WPS.(  as per D1.1 Table 3.7 clause No- 7) A change in nominal electrode diameter(s) is essential Variables),How can they use 1.2 mm in WPS?

2) WPS and PQR base material using S275 JR but certificates are attached A36 material  - ( It's Acceptable as per code )

3) With reference to subject in WPS -  joint details - Backing and backgouging  - N/A. ( is it acceptable. )

Please clarify me regarding my above doubts.

Thanks in advance 

Regards

Kiran

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