Hi Every Body,

Any body can help in interpreting the below sec. QW-304
My Question is whether is the visual inspection prior to volumetric NDE required to Qualify the welder?

If yes, then why It's not mentioned as Alternatively,
welders may be qualified by volumetric NDE per QW-191 and QW-302.4 respectively.

Below is QW-304 for your reference.

QW-304 Welder Qualification Test requirement :

Except for the special requirements of QW-380, each
welder who welds under the rules of the Code shall have
passed the mechanical and visual examinations prescribed
in QW-302.1 and QW-302.4 respectively. Alternatively,
welders may be qualified by volumetric NDE per QW-191
when making a groove weld using SMAW, SAW, GTAW,
PAW, andGMAW(except short-circuiting mode for radiographic
examination)

Thanks in advance.

muru1011,
See QW142 - mechanical testing is being substituted with radiography.
The visual examination requirement of QW 304 is still applicable,
Regards,
BB

Dear BB,

Thanks for your kind explaination and I accept that.

But still my question is why the alternative method of volumetric NDE is not quoted as QW-191 and QW-302.4 ( only mentioning QW-191) as mentioned for mechanical test QW-302.1 and QW-302.4?

With Best Regards

Muru

Hi Friends,

Clarifying the below question will be highly appreciated.


Is visual inspection required to qualify the welder by RT or Volumetric NDE ?


Thanks and regards

Muru.