Welding 36'' X 24'' Split tee(A 234 Gr WPB) on 16mm thick pipeline(API 5LX-65) carrying gas

[PHILIP]

Gents,

We are currently faced with a challenge with regards to welding a 50mm thick split tee fitting on a 16mm gas pipeline, Could any one help me with past experience on this with regards to structural integrity of the weld and welding issues encountered.

Best Regards

Philip .T

[Mohamed Elsahhar]

dear Friend
pls. clarify the nest point to help you

- please send me the picture of split tee to determine the fillet joint design
- the welding will done as a hot tap (pipe line in service) or just
weld the spit tee with pipe


QA/QC ENGINEER AT PETROMAINT /EGYPT

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[srinivasan muthukrishnan]

Dear philip,

1. need to calculate the weld metal deposit

normally pipe wall thickness x2 times only you need deposit the fillet weld

2. main issue is heat input and inter pass temperature you need to maintain during welding

3. for gas line dont use the electrical resistance method try to use burners

4. prefer the vertical down method welding if it is 5G position.

Regards,

Srinivasan.M

 

---

From: Mohamed Elsahhar <mohamed.el...@gmail.com>
To: material...@googlegroups.com
Sent: Sunday, 29 September 2013 3:42 AM
Subject: Re: [MW:18804] Welding 36'' X 24'' Split tee(A 234 Gr WPB) on 16mm thick pipeline(API 5LX-65) carrying gas

dear Friend
pls. clarify the nest point to help you

- please send me the picture of split tee to determine the fillet joint design
- the welding will done as a hot tap (pipe line in service) or just
weld the spit tee with pipe


QA/QC ENGINEER AT PETROMAINT /EGYPT

On 9/27/13, PHILIP <constructionm...@gmail.com> wrote:
>
> Gents,
>
> We are currently faced with a challenge with regards to welding a 50mm thick
> split tee fitting on a 16mm  gas pipeline, Could any one help me with past
> experience on this with regards to structural integrity of the weld and
> welding issues encountered.
>
> Best Regards
>
> Philip .T
>
> --
> To post to this group, send email to material...@googlegroups.com
> To unsubscribe from this group, send email to

> materials-welding+unsub...@googlegroups.com

> For more options, visit this group's bolg at
> http://materials-welding.blogspot.com/
> http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
>
> The views expressed/exchnaged in this group are members personel views and
> meant for educational purposes only, Users must take their own decisions
> w.r.t. applicable code/standard/contract documents.
> ---
> You received this message because you are subscribed to the Google Groups
> "Materials & Welding" group.
> To unsubscribe from this group and stop receiving emails from it, send an

> email to materials-welding+unsub...@googlegroups.com.

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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
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[Philip Taiye]

Dear Mohamed,

Kindly find attached the split tee picture for your use.your swift response will be appreciated.

--

Best Regards

Philip .T

[Tamil]

Philip,

 

Nothing will happen. This is a normal practice while doing Hot Tap process. Tee constructed 2 Long seams (Butt Joints) and both side cir cum seam with fillet welds. If to do so Hot Tap welding on live line then we have more concern about Preheat while Procedure (As per API 1104) and actual welding due to rapid cooling possiblities. Otherwise no problem

 

Best Regards,

 

Thamizh

[srinivasan muthukrishnan]

Dear sir ,

you need to cut circumference bevel location 45deg by machine

The calculation is 2times of run pipe thickness only you can weld.

for ex your run pipe thickness is 13 mm so you need to weld 26 mm only and during weld need to maintain the inter pass that is main.

pls find the pic. vertical down welding need to use.

Regards,

srinivasa.M

---

From: Philip Taiye <constructionm...@gmail.com>
To: material...@googlegroups.com
Cc: mohamed.el...@gmail.com
Sent: Monday, 30 September 2013 1:40 PM
Subject: Re: [MW:18817] Welding 36'' X 24'' Split tee(A 234 Gr WPB) on 16mm thick pipeline(API 5LX-65) carrying gas