If the weld filler metal keeps the "Trade Name" as was used under "Organization A" then requalification would NOT be required, however if the filler metal was re-named then I would lean towards re-qualification is required.
Rajj,
First off the 2014 Edition is not applicable until August 27, 2015. If you are planning on welding without filler metal (Autogenously) then 323.2.2(f) will exempt you from Impact testing, however; if filler metal will be added to the weld joint, then Impact testing will be required as...
blaqesmith, if an Alteration/ repair is required on this vessel, you may be able to obtain documentation from the certifying body it's registerd with (i.e. National Board/ Pressure Vessel Directive). In most of the vessels I have dealt with I know there are certain documents that are required to...
Yes you do have to provide Impact testing. See UCS-66 to explanation, it discusses certain joints (i.e. what part welded to what, etc.). It's not the fact that it takes a partial penetration to make the weldment, it is each component to the other that is evaluated.
I agree with all of your recommendations. The 410NiMo filler metal was actually the one specified, however before getting me involved the use of 410 SMAW was used. And before I require them to start cutting all of the welding out (as I am thinking I need to anyway) I was only wanting to cover...
I have a project currently underway which involves .500" SA-240 Type 410s (P7 Gr. 1) and the client is imposing a MDMT/CET of -20°F. We have completed the production impact plates as required by ASME VIII-1 (UHA-51(h)) and according to UHA-32 the PWHT of this material is required to be performed...
The acceptance criteria for Grade 2 does not have to be met as well. The requirement is to meet the minimum tensile for the weaker of the 2 (see QW-153.1(b)).
C2012,
The only out/ exemption that you have is that if the material you are welding has a thickness (T) less than .098" then Impact testing would not be required (as shown by Table K323.3.1 note 6).
You say QW-452(?), this is for Performance qualifications, not a WPS/ PQR per QW-450? Please review the WPS and ensure that the WPS met the requirements of QW-450, QW-150, QW-160, & QW-194. If you are speaking of the Welder Qualification, if it was on a groove weld, the Welder is qualified for...
tonnesen,
Wow what a "kinda" loaded question. As for your 2nd question.... if you did use a 25mm coupon in qualification and performed PWHT at 2 hours (hypethetically), you would then be qualified (with Impact testing applied)as follows:
Minimum thickness: 16mm
Maximum thickness: 50mm
PWHT time...
metengr,
I agree as well, Castings can be tricky beasts to overcome at times. Take for example CA6NM; this material has a mind of it's own! Only due to experience and many, many, trials and errors; I do now as a Company's Senior Welding Engineer actually qualify castings as their own entity due...
The Duplex casting you are referencing is also identified by a UNS # (J92205). In accordance with ASME IX QW-420 (bottom left paragraph starts: "If an unlisted base metal...."). When this is used, and the UNS# is found within another "listed" material then this is and can be shown and welded as...
I agree with Mr168; you have to be very careful doing that. What I made the NDT group do was to actually grade the film to both the Code of Construction (ASME B31.3, B31.1, ASME VIII-1, etc.) as well as include that they graded per ASME IX (QW-191.1.1.2.2). The requirements are clearly stated...
stanweld is correct; this is a very big mistake people make quite regularly. Your design code dictates this requirement; such as if you are designing to ASME VIII-1 then UCS-66 would be your guide with impact testing being performed in accordance with UG-84.
