Recent content by thandion

As stated in the ASTM A380; stainless steel has a very thin and stable oxide film rich in chrome. This film reforms rapidly by reaction with the atmosphere if damaged. If stainless steel is not adequately protected from the atmosphere during welding or is subject to very heavy grinding...

Pipes will be according to ASME B31.3. Diameter is varies between 1/2" to 20". Could find specificly for inside weld, thats why I opened a new topic. Thanks,

There is no specific extra standard other than internation ones. Yes we will visually inspect all welds. For inside of pipe, isnt natural oxidation is enough, do we need passivation treatment. Could you give me the section from ASME BPE, couldnt find specific detail for that. Thanks,

Dear experts, My question is, after welding our clint wants us to do pickling and passivation on the welded A312 TP316L stainless steel. But they want to do pickling on the inside of pipe as well (weld area). The thing is we are purging weld from inside until weld is finished and cooled down...

Dear experts, My question is, after welding our clint wants us to do pickling and passivation on the welded A312 TP316L stainless steel. But they want to do pickling on the inside of pipe as well (weld area). The thing is we are purging weld from inside until weld is finished and cooled down...

Dear all, I checked the API 1104 but couldnt find anything explains this directly. Normally in ASME Sec.IX when you ran a PQR with butt weld you are qualified to fillet welds also. But in API 1104 in essential variables section code only states joint design like V to U bevel. Is there any...

It should be 7010-G, not 7018. my bad.

For X60 material, how about E6010 root then 7018 fill&cap. Other than good penetration is there other pluses to use 6010?

denlow60, Pipe is 20 inch probably standard sch. 9.53mm. X60 material. Regards,

Yes denlow60, Their mechanical strenghts are different and normally I wouldn't prefer to use SFA 5.1 on X60 pipe. But due to the procurement issues this was my only choice and looks like API 1104 allows it. Regards,

Good morning, I am working with piping company which specialized on only aboveground pipeworks. And there is an upcoming pipeline work that we will possible get awarded. Our old procedures are outdated, could anyone explain me current pipeline works. I mean is 2-3 group stick SMAW welding...

Good morning, I am working with piping company which specialized on only aboveground pipeworks. And there is an upcoming pipeline work that we will possible get awarded. Our old procedures are outdated, could anyone explain me current pipeline works. I mean is 2-3 group stick SMAW welding...

Thank you, mine is X60 material so I can change electrode in same group.

Good evening, I have a procedure based on stick SMAW electrode E7018-G-H4R SFA 5.5 numbered. Am I allowed to use SFA 5.1 numbered E7018-1 H4 electrode instead. Is it strictly essential variable or are there some variations. Code is API 1104, but couldnt find in it. Thanks,

Dear all, Im kinda stuck at welder qualification of branch welds. We have a nipoflange which connects to pipe's surface directly (with bevel and full penetration) but since it is not a butt weld and has nearly 20mm thickness I couldnt find anything related to this in ASME SecIX. Is this...