What defection of pipe weld. 6

[Suradach]

We would like to all expertise explore the defect of welded after the pressure test is attached.
All in your advice will be information and preventive to our team

Thank you very much.

 

[kingnero]

Doesn't look too bad...

 

You clearly have zero expertise in welding/welding engineering and you're asking the interweb to remedy this fiasco?

p.s., what if this botched job had passed the bubble test? Would it have been put into service somewhere? I'm already sorry I asked.

"Everyone is entitled to their own opinions, but they are not entitled to their own facts."

 

[weldstan]

Lack of penetrasion, lack of fusion, excessive porosity and who knows what else. Most likely using wrong welding process to weld root pass and welder not properly qualified.

kingnero, LOL!!!

 

[EdStainless]

What is the material?
Better ask before I go off on a rant.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, consulting work welcomed

 

[MJCronin]

Welding Engineer is clearly a 20 year old recent STEM graduate .....

MJCronin
Sr. Process Engineer

 

[Suradach]

Our contractors have complete quality control documents such as
WPS,PQR,WQT, but in contrast to the quality of welding.
I believe it was the result of the welder's inattention.

 

I believe it was the result of the welder's inattention.

What, was he looking at cat videos while welding?

"Everyone is entitled to their own opinions, but they are not entitled to their own facts."

 

[DVWE]

Our contractors have complete quality control documents such as
WPS,PQR,WQT, but in contrast to the quality of welding.

They clearly do not, as this should have been caught by said quality control documents.

The devil is in the details; she also wears prada.

 

Welding Engineer is clearly a 20 year old recent STEM graduate .....

S killed
T rades
E arn
M ore


"Everyone is entitled to their own opinions, but they are not entitled to their own facts."

 

Our contractors have complete quality control documents such as

Surprise, procedures don't make welds.

"Everyone is entitled to their own opinions, but they are not entitled to their own facts."

 

[EdStainless]

Inattention!!!
No shield gas
No penetration
Dirt in welds
Welds too rough

Go back through your records and cut out every inch of material welded by this welder.
And then 100% inspect what is left.
A good borescope will help you out.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, consulting work welcomed

 

[MintJulep]

Go back through your records and cut out every inch of material welded by this welder.

There's some really wishful thinking. Christmas is approaching as well. What are you wishing for?

"Complete Quality Control Documents" do not do anything if:
No one reads them.
People read them, but don't understand them.
People read them, then don't do what was written.
No one is responsible.

 

[EdStainless]

Yes, that was sort of tongue in cheek.
I can't imagine that a group that made that weld would actually have believable records.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, consulting work welcomed

 

[ATSE]

Tough crowd!
You old timers need to be just a little bit nicer.
It's not the healthy that need to see the doctor, and not the righteous that need to go to church.
Greenhorns come here because they lack knowledge. Yes, sometimes a lot, to the point it's scary. But at least give them some clear, simple, practical direction before poking them squarely in both eyes.
If nothing else, the other visitors of this post will benefit and know what not to do.
[yes, I'm throwing rocks from a house of glass]

 

[weldstan]

By the way this js not the worst looking weld I've seen. I used one made by a welder under duress as a primary example im my Lwvel II VT training class which contained almost every weld flaw/defect listed. Could have used this one too. Had seen structural welding items where the welder missed the joint amid numerous other flaws/defects on items delivered to the job site - rejected of course.

 

[Tmoose]

Is there a Code that required the pressure test on this assembly?

if so, I'd guess there is a bunch of weld, welder, weldor requirement in that Code too.

If There had been a CWI ( Certified Weld Inspector) in the neighbor hood I think the welding would have been re-worked before the assembly was pressure tested.

https://supplier.huntingtoningalls....lders_Visual_Inspection_Handbook-2013_WEB.pdf

 

[MintJulep]

Our contractors have complete quality control documents such as WPS,PQR,WQT

If there are procedures in place, and if the procedures are actually good then the root cause is "Failure to follow established procedures."

EdStainless has already started the corrective action section of the report relative to existing welds.

Go back through your records and cut out every inch of material welded by this welder.
And then 100% inspect what is left.

Then add:
Identify all other welds that were made without following the established procedures and inspect them.
Identify all other welds that were made by welders that can not be proven qualified at the time the weld was made, and inspect them.

Next is needed the part about preventing future occurrences. Which will be "Follow the procedures."

 

[david339933]

It's not the healthy that need to see the doctor

True...if you go for surgery, you expect the surgeon to be well trained, not walk off the street and grab a scalpel. Same thing goes for pressure welding....training is a must. What you have looks like someone walked in off the street, grabbed a rod and went to it.

The "old-timers" are harsh for good reason....too many horror stories/lives lost.

 

[MintJulep]

Let's give Suracach the benefit of the doubt and assume they are what they appear to be.

A young engineer who has been dropped into a big pile of ....... badly welded pipe.
They are not the welder.
They probably are not the person that hired the welder.
They want to do the right thing, but because of inexperience does not know what that right thing is.