A588 with 80 filler procedure question? 1

[qcrobert]

If welding a588 that is going to be exposed, bare weathered, multi pass groove with E8XTX A5.29 filler metal for atmosheric corrosion and weathering characteristics, can this be done with a pre-qualified wps?

A558 is a group II material, therefore can you write a wps just for A588 welded with 80 series filler or would you have to produce a pqr?Table 4.5 PQR essential variable changes - filler metal 1) Increase in filler metal classification strength.

BUT, Table 3.1, A588 with note b Special welding material and WPS(e.g. E80XX-X low alloy electrodes) may be required ect. ect.

So does that mean that you can write a WPS prequalified to meet the requirement, or does a PQR need to be performed, I'm a little stumped...

Thanks for advice/comments,Robert

 

[connectegr]

Maybe I will be smarter in my response over here in the AWS section. I have also done a little homework. Sorry for my learning curve.

Provided that your weld falls with parameters of Chapter 3; base metal, filler metal, welding process, preheat, etc. So that all parameters are prequalified, then your WPS is prequalified and does not require physical testing. I believe in your case all the parameters are prequalified.

To give proper credit, I also asked the Chair of D1.1 and he clarified my poor understanding.

http://www.FerrellEngineering.com

 

[Mr168]

Yes, you can use a prequalified WPS with an 80 series filler under certain circumstances. You have to navigate around D1.1 Chapter 3 to find it, but the intent was to permit the use of fillers like an ER80s-Ni1 for A588 and A709 Gr.50W for weathering steel color match purposes. See Table 3.3 and paragraph 3.7.3 (in the 2000 Edition, reference may have changed in the newer edition).

 

[qcrobert]

Thank you both for your advice & research, I concurr but wanted reassurance.

QCRobert