D1.1 2006__Pre wps

Date 10-04-2007 08:59

Hi all
I just have discussion with colleagues about the pre-wps. each of us have one opinion... I decided to post the topic to seek for expertise advices.
in section 3.Prequalification of WPSs; para 3.1 says that "prequalification of wpss shall be defined as exempted from WPS qualification testing required in section 4. all prequalified wps shall be writen. in order for a wps to be prequalified, conformance with all of the applicable requirements of section 3 shall be required.
So, Should I need to qualify WPS if I prepare a prequalified wps in accordance with section 3? How can I know the qualified range eg: Thickness, dia, position etc.?

Thanks
Alex Hung

By hogan

Date 10-04-2007 13:06

to me it looks like your not making a distinction of wps prequalification and welder qualification. the welder must be tested in accordance with section 4 (a few exceptions). that is where the limits you mention come from. or i could be totally misunderstanding your question.

By hung7601 (*)

Date 10-04-2007 13:58

Hogan
I am talking about prequalified WPS as per D1.1 , not related to welder qualification
Alex Hung

By hogan

Date 10-04-2007 14:46

ok look at figure 3.3 and 3.4. there are some thickness limits and position limits. these two figures, together with table 3.7 (06). other limits are listed in text of section 3

By hung7601 (*)

Date 10-06-2007 01:03

Thanks Hogan