AWS D1.1 & ASME SEC.IX

[Kumar]

Dear Experts,

Just a query regarding PQR & WPS generation. the project spec. calls
to follow PQR &
WPS according to Sec. IX for construction of pressure vessels ( MOC-
SA 516 Gr. 70 N). complying to to ASME Sec. VIII Div.1.

Also the allied base frame structures ( skid frame) too with the above code.
The work had been assigned to 2 diff. sub-cons & one of them made PQR
& WPS according to AWS D1.1 in order to use the welding of
structures. this was done due to the queries & enforcing of Main cont.
engineer though spec. calls for Sec. IX !

But here, one sub-con is unable to provide AWS D1.1 PQR & WPS due to
practical difficulties & says both don't have much differences.

Our doubt is that, once the mecahnical integrity of the intended weld
is proven with Sec.IX PQR, then what is the necessity to call for AWS
D1.1 PQR, WPS etc...?

your valuable feedbacks are highly appreciated.

Thanks in advance,
kumar.

[Prakash Gotimukul]

No body can say they are same. It's two diff systems n codes. Need seperate qualification. However it's for client to decide if he accepts one for other?

--
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
To post to this group, send email to materials-welding@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CALuBtp9nsuxHpxS7vgbrJ7sW9LishaWqsoAVZiMmp9rwny3rWw%40mail.gmail.com.
For more options, visit https://groups.google.com/d/optout.

[Bala Murugan]

Dear Mr Kumar.

The requirement on ASME IX not same as AWS D1.1. The variable are the most clearly different in there. For example, ASME IX mention for joint configuration park on NON ESSENTIAL VARIABLE but on AWS D1.1 is contrary.

It depends on your client!

Few reputed clients accept ASME IX WPS in place of AWS D1.1.You can convinces your client by referring to API RP 582 - 2nd Edition, Clause 4.

Before approaching your client ,please ensure API RP 582 is applicable for the project.

 

4 General Welding Requirements

4.1 Structural (nonpressure boundary) welding requirements shall comply with either AWS D1.1 or AWS D1.6.

When approved by the purchaser (engineer) welding procedures may be qualified per ASME BPVC Section IX.”

Thanks,

Balamurugan

[Prakash Gotimukul]

Dear All,

I have reminded several times that this forum is not a problem solving exchange of mails. If a matter needs a wider discussion on any aspect of codes, comparisons or interpretations, meaning and details of how to apply for a particular situation, then that subject can be brought out. 

When ever a answer is given it for all the members. So addressing to a Mr Kumar by name is incorrect.

The message shd always start with in my opinion etc or just quote the paragraph of the code referenced including exact sentence etc for easy understanding.

Even the members who are asking questions must give proper details whether it is a actual case or a discussion for acedemic interest . Relevant project code applicable, whether it is for new construction or old equipment , repair or site/shop etc.

I request all members to raise the level of this forum and make it a high standard one, so that when some one is reading he shd feel that the reply is given after careful study and is full of knowledge increasing references.......

I have heard some members complaining that individual opinions are given without references to codes/standards which may become a wrong example leading to wrong knowledge getting circulated.

Hope all members will take note and follow the discipline established.

Rgds

Prakash Gotimukul

AIS, Consultant ASME/ISO/PED/IBR

 gpraka...@gmail.com.

 Mob:+97152 979 5678

--
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
To post to this group, send email to materials-welding@googlegroups.com.

To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CAL9C6DYvgxQzXhT9RwRKaugXMVMDa2GD7xdcvz9TaX6Q4hbhxA%40mail.gmail.com.