Hello guys,
I have a couple of questions.
1- Is that necessary to apply the backing gas for root of T joint fillet welds of stailess Steel materials?
2- Considering ASME IX, is that possible to use GTAW approved WPS qualified with backing gas for a T joint fillet weld, without backing gas? Or...
Hi,
Is anybody knows what is the minimum allowable distance between girth welds in pressure vessel or piping fabrication for carbon steel and stainless steel? Based on ASME code or engeineering practice.
THX
Hi Jonesey,
Are you going to use Stud Welding process for welding anchors? If yes preheat is also important to have low hardness in HAZ area. If you keep eye on preheat to be maintained within the specified limit, it is the great help.
If you are going to use SMAW process, you have to control...
Recently we had a same case and we used B6 electrode. Considering the high temperature services the resistance of filler metal is more than the base metal P1.
In case of using E7018 as carbon steel filler metal it can not work at high temperature considering the properties of weld metal...
Stanweld,
This idea raised from an article I read but cannot remember where, it described that; it is possible to ignore PWHT of P5 materials in case of using Inconel 625 for welding. You know that the P5 materials shall be PWHT base on code requirements. Do you have any idea about that?
By the...
Thanks metengr;
The material is carbon steel A106 B, A105, generally P No. 1 with thickness less than 19.05 mm, reference code and standard is ASME B31.3 and NACE MR 0175.
As I understood, there is no requirement for PWHT base on B31.3 and even MR 0175 for above conditions, as long as there is a...
Thanks all for the valuable replies to question.
I have to add, base on NACE MR 0175, under certain conditions carbon steel materials and even welding as long as hardness is less than 22 HRC need no any PWHT. Regarding the subject spools are just to be used in sour services and all condition are...
Is that possible to use Ni base alloy filler rod for joining Carbon Steel (SA106 B) spools in PWHT condition and avoid PWHT of joints,In Sour services? Nace MR 0175 to be considerd.
