Dear all,
We use ASME materials (SA-333 Gr6, SA-350 LF2, SA-420 WPL6), for construction according to EN13445-1 (yes, it is allowed).
As per ISO 15608, materials that belong to group 1 but have higher C% (greater than 0,25%), belong to group 11.
Now, as per ASME II, the above materials have...
Dears david339933 and r6155,
Thank you for your useful responses!
r6155, this paragraph is known, thank you for pointing out. The thing is that the User/Client specifies the LWN to be solid SS material, and welded on the cladding (for their reasons, probably process and theri historical data -...
Hello guys,
I kindly need your assistance to the below (attached sketch for reference):
As you see, it is a branch (corner) weld (Set-on type) of a SA182 Gr. F321 Long Welding Neck (LWN) with thickness varying from 15,87mm to 27,1mm, to the Pressure Vessel Shell, which is a SA387 Gr.11...
Hi everybody,
We are fabricating a Column with dimensions 3700mm ID, 17mm thickness, SA516 Gr70 material (TL-TL does not matter). The Column is now at its final stages of fabrication, and it has a lot of nozzles welded to its shell. These nozzles do not give us a lot of position choices, and so...
Hi to all,
I was wondering if anyone could suggest what video camera (type, model) would be convenient to be used for welding operator of Electroslag Strip Cladding process. Electroslag Strip clading process produces heat, radiation and a lot of light from the melted strip and flux (although...
Dear all,
Reference is made to NACE MR0103-2015, clause 15.2.3
Quoting:
15.2.3 The base materials listed in Clause 13 or Clause 14 are also allowed as weld overlays, provided
they meet the provisions of their respective paragraphs after being applied as overlays. Following
application of the...
XL83NL,
Thank you so much for your prompt reply; I can now admit that I had exactly the same impression and opinion, but now I'm more confident...
We are in Greece, and the client is a local refinery...
I believe that I will now have to get in contact with the client, to see our next steps...
Hi everyone, and happy new year!!!!
Our Client needs to make some heat exchangers that are copy of the existing ones, made back in 2004-2005 by others.
They provided to us the data books of the exchangers fabrication. That time, the applicable ASME BPVC edition for the project was 2001, with...
Hi everybody,
We have a pressure vessel to fabricate, with weld overlay. The bond quality shall be checked per SA-578, Level S6. But, level S6 is nowhere within the Code... I only see Class 1, Class 3 and Class 5. What is the compatible Class, for level S6? I believe that S6 is withdrawn some...
Dear fleischfresser, thanks for the reply;
I was looking exactly for this, and just realized that Code edition 2017 is much more clear than edition 2015. In ed. 2017, note 1 of table 7.2 is self explanatory, while in edition 2015, this was a grey area... Of course, there is always table 7.3...
Hi,
According to Table 7.2 of ASME VIII Div.II, for Cat D joints, either type 1 or 7, RT or UT is required, together with MT or PT. My question is whether the UT shown in Table 7.2 is "in lieu of RT", or conventional UT could be performed.
Only best result in absolutely necessary time
Hi Shane, thanks for the reply!
Yes, the Client has seen both the film and the report... The Client has proven himself pretty typical to these issues, and he wants the report to be "perfect". Now, we agree about the final outcome (thinner wire, better film quality). Yes, he managed to see wire...
Hi all,
After having a comment from my client on a RT report regarding the wire IQI used and reported, I found out that ASME BPVC Section V, article 2, refers only to essential wire, but does not refer to "better", like it refers for the hole.
I mean that, in a specific case, the RT was...
r6155, great idea, but cannot do...
metengr, we do not really agree, RT image - when you know the joint configuration - is enough for interpretation and I would really like to find some excuse not to use it, but it's not my style and it is requested as contractual obligation...
JR97, totally...
Hi guys,
Tube material SA-334 Gr6. thickness 2,77mm, diameter 1".
Client requires impact test according to SA-334 and ASTM E23, at -45 degrees Celcius (in excess of UCS-66), due to PED requirements in Europe. A lot of companies, clients etc do not take into account the UCS-66 of ASME VIII...
Gentlemen, thank you for your replies;
metengr, just curious, you wouldn't accept ANY RT, or this one due to indications?
r6155, the experimenting is just trying to achieve the most efficient parameters to produce a good strength tube to tubesheet weld. Positioning of wire, depth of penetration...
Hi to all,
We are experimenting on Tube to Tubesheet strength welding, and we are buffled by RT, which in any case it is pretty difficult to make it, but we managed to do it, anyway.
The thing is that it produces a round indication exactly on the "root" area of the orbital weld (ORBITIG - not...
Thank you both for your replies, and sorry for my late reply...
So, weld clearance is the main issue as I understand... Common practice would be satisfied with a 50mm (2") weld clearance, and I think we do have it.
Just for the record, it was decided by Client to substitute totally the lower...
