WELD DISTANCE AS PER ASME-

[Raneesh.PK]

Dear experts,

Can any one please confirm the Minimum distance between butt weld joint as per ASME B31.1.

Regards,

RANEESH.PK

QA/QC-WELDING

[syahrul husin]

Dear Raneesh,

i m not an expert.But i m sure the allowable distance between the weld would be 4T or 50mm.

[George Dilintas]

tHERE IS NO RESTRICTION IN THIS CODE SECTION.

HOWEVER, YOU HAVE TO CONSIDER METALLURGICAL ISSUES.

ONCE MORE, CODE IS NOT AN ENGINEERING HANDBOOK

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Dr. Georgios Dilintas,

Dipl. Ing. In Aeronautic and Space Engineering

Ph.D in Mechanics of Solids - Computational Mechanics

A.I.S, A.N.I, IRCA Lead Auditor

Welding, Stress Analysis, Corrosion, QA/QC, Failure Analysis, Risk Analysis

[pavan kumar reddy Juturu]

Dear Raneesh,

The distance between adjacent butt welds is 1D. If not it is never closer than 1 1/2" . This is supposedly to prevent the overlap of HAZs. Min. Spacing of circumferential welds between centerlines shall not be less than 4 times the pipe wall thickness or 25 mm which ever is greater.

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[Himan Nikdin]

Dear Raneesh

Would you please introduce your reference?

Sent from my iPhone

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[cd murali]

The minimum distance between parallel butt welds shall be 20 mm or three times the wall thickness of the joint, whichever is greater as per Saudi Aramco Standard

Regards

​

​

C.D.Mural

i

 | QA/QC 

​Welding/Piping Inspector

| M.S. Al-Suwaidi Industrial Services Company Ltd| Rabigh Phase-II Petrochemical Project (G.S.T), AR-4501|

​

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[Kannayeram Gnanapandithan]

Weld toe to toe is around ,13mm

On 26-Jan-2017 12:12 pm, "cd murali" <cdmur...@gmail.com> wrote:

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The minimum distance between parallel butt welds shall be 20 mm or three times the wall thickness of the joint, whichever is greater as per Saudi Aramco Standard

Regards

​

​

C.D.Mural

i

 | QA/QC 

​Welding/Piping Inspector

| M.S. Al-Suwaidi Industrial Services Company Ltd| Rabigh Phase-II Petrochemical Project (G.S.T), AR-4501|

​

On Sat, Dec 10, 2016 at 6:28 AM, Raneesh.PK <pkra...@gmail.com> wrote:

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[George Dilintas]

There is no limitation on B31.1

There is a limitation in PCC-2 but this is applicable for repairs

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[Sikhandar Ummer]

Please let me know reference STD no.

Sikhandar

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[Mohd Siraj]

There is no ref in 31.1