Thanks Ron
Perhaps take a look at 4.2 (c) & 4.7.3.
There is no time limit on these provisions. Should we make it the very last weld on the project? Some would try I am sure.
Classic dog marks. I'd say they would be near a weld seam and were used to bring the plates flush before welding. Guessing I'd say a cellulose electrode given the pen and if you look at the cap locally you can see the classic course ripples of a cellulose electrode used to make the main event...
Is it normal for a welding code to allow production welding to start BEFORE a PQR is run? Once the procedure is qualified then it covers the welds already welded, is that a normal provision in a code for PQR & WPS's? It is in AS/NZS 1554.1 - 2014 with no time limit on how long you can run...
Are you permitted to write a welder qual for yourself in AS/NZS 1554.1:2014?
And if so is this bad?
I started a thread on AS/NZS 1554.1 and have been locked out of it twice and it's sub-section once despite, as far as I can see, complying with the rules. So I've had to shift to here. Maybe...
Thank you Eng-Tips.
The other variable issue in 1554.1 that annoys profusely is this neglecting to classify standard requirements as essential variables or non essential variables.
Once the Boolean nature of Welding Standards is understood then you can get real smart by playing the logic...
Some of the steels covered by 1554.1 can be upto 100 mm thick and are TMPC steels that do not like a PWHT over 620 Deg C. Even if there has been work done to reduce the thermal treatments traditionally reqd during fabrication I am not so sure there is no need for PWHT if you are butt welding...
Have you heard of another structure code that does not address PWHT on unlimited thickness material qualified with a macro only? This appears to be a provision of 1554.1. There is no EV or NEV covering it, you can add it to your WPS just by writing it in, or leave it off, or turn up the heat, or...
I just wrote to them and told them just that, I know of no expat bar on our planet where people say that 1554 is cracker, in fact after they find out you're a Kiwi and after the sheep jokes have been dispatched with, we normally get straight down to "and how is 1554 these days, decided you need...
Thanks Shane,
Codes, Standards need to be safe on their own stand alone basis otherwise if they are not safe then they run the risk of being dangerous - especially in the wrong hands.
I won't write WPS's that are unsafe, others may well if they blindly follow, and, there are a lot of people who...
I don't want to break any copyright protocols for obvious reasons so I haven't posted any material from it here. I am really not sure of the rules relating to this and given what could transpire if I am seeing this correctly I think it best to stay on the safe side Gents.
But, if you do have a...
Training required.
Would be interested to understand what people think of the variable as described in Table 4.11A item (m) in AS/NZS 1554.1:2014.
Preheat is determined as per clause 5.3, but is allowed to drop another 20 Deg C according to this variable, seems strange the 20 Deg C isn't...
thread809-354393
A quick follow up on this in case anybody else struggled with this, I think it is safe to say the check in 4.7.4 is not a flange alignment check at all. It is a check of how well the spring supports match the piping. This is done before any detailed piping to machine alignment...
OK, maybe a little bit involved.
Can anybody tell me if it is important [or required] to have the flanges stress free with the spring supports adjusted to the cold load position and the stops removed.
Morning Gents,
I’m new here so take it easy...
I’ve been putting together an ITP for Flange Bolting using ASME PCC-1 as a guide but I am getting a little confused where it refers to API 686 Part 6, 4.6 through 4.9 for alignment of flanges connected to sensitive or rotating equipment when...
