Re: [MW:4094] RE: 4089] RE: 4088] Weld Efficiency

Even for Single bevel butt joint( V or U) without any backing strip left in position, ensuring Full penetration weld and  RT full double wall technique and / or UT , we can consider as Type-1 with Joint efficiency 1.0.

Tagore

On Tue, Jan 19, 2010 at 5:26 AM, Phirke, Praphulla D (GE Infra, Oil & Gas) <praphulla.phirke@ge.com> wrote:

Hi Bathula

Its simple Pipe to pipe joint single butt weld joint ( 4 to 8" Sch 10 pipes) .But considering the thickness & diameter its lying in Type 3.

Can we consider Type 1, but its for double weld butt joints?

 

Thanks

Praphulla

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From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Bathula Raghuram (Mumbai - PIPING)
Sent: Tuesday, January 19, 2010 4:50 PM
To: materials-welding@googlegroups.com
Subject: [MW:4089] RE: 4088] Weld Efficiency

what type of joint it is, if it is to be radiographed, why not consider under type 1 of table UW12

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From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Phirke, Praphulla D (GE Infra, Oil & Gas)
Sent: Tuesday, January 19, 2010 4:30 PM
To: materials-welding@googlegroups.com
Subject: [MW:4088] Weld Efficiency
Importance: High

Hi All

As per ASME SEC VIII Div I, in Table UW-12 , for type No 3 weld joints, 0.7 joint efficiency is specified without any radiographic examination.

But If I performed radiography examination, then what joint efficiencies values I should consider for Full & Spot radiography ? As per code & Table UW-12, its NA. 

 

Please guide me.

 

Thanks 

Praphulla D. Phirke

Lead Engineer

GE Infrastructure

Oil & Gas

ASE-RC PV & HEX

John F. Welch Technology Centre

T   + 91-080-4088 5903

F   + 91-080-2841 2111

M  + 91-9886052515

praphulla.phirke@ge.com

Odyssey, Phase - 5, Wing A, 2nd Floor,

Plot No 122, EPIP Phase II,

Whitefield Road, Bangalore 560 066

GE India Technology Center Pvt. Ltd.

GE imagination at work

 

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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.