interruption limitations to stop welding

[sankar krishnan]

Dear All ,

  In our Pressure vessel project 10mm thickness plate they using (GTAW+SAW) process , They have welded GTAW with 4 mm of 10mm thickness and leave open for 1 days .. I like to Know what is the interruption limitations to stop welding Limits for <19mm thickness 

Please send me code documents 

[Vishwas Keskar]

what is the material being welded "

CS ,Cr Mo or SS 

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[mahesh chilukamari]

Hi,

Refer to below from ASME B31.1

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[Kannayeram Gnanapandithan]

referring code

If it is ASME, no restriction

THANKS & BEST REGARDS,

KG.PANDITHAN, BE, IWE,  CSWIP 3.1,

ISO 9712 Level 2 in VT,

ASNT-Level II in PT,MT,RT & UT,

LA ISO 9001-2015,

International Welding Engineer. 

CONSULTANT-WELDING & QUALITY

Mobile no: +919940739349

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[sankar bombay]

i am looking ASME VIII div1 , requirement same above as per project specification below details , I am looking for <19mm 

P1 through P5B materials with wall thickness  19 mm (0.75 in.) shall only be
interrupted provided a minimum of 10 mm (0.375 in.) of weld metal has been deposited or 25 percent of the weld
groove has been filled, whichever is greater. If welding is interrupted, the weld shall be covered with adequate
insulation to ensure slow cooling. The partially completed weld shall be 100 percent MT-inspected prior to
resuming welding.

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shankar

[George Dilintas]

Why you are trying to find problems when there is not

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[sankar bombay]

Brother 

   What about stress concentration and Oxidation of weld material , fast cooling at open atmosphere, How they will maintain the interpass temperature to avoid delay cracks 

these are the thing to be considered for low thickness , if i am wrong let me correct myself 

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shankar

[sankar bombay]

cs material 

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shankar

[Vishwas Keskar]

10mm Carbon steel

No problem will be there. 

Just carry out Visual Inspection of the weld and proceed for subsequent Welding 

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[satesh kumar]

according to you its good engineering practice?, all problem finding will give good result , all code book they finding problem and solve result at next edition  

[Vinay Thattey]

Need more details . Material to be welded i.r P No etc

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[Xuân Thông]

Hi sir, 

The stop welding may be to check any cold cracking if any prior to weld the next layers

Vào Th 5, 1 thg 4, 2021 vào lúc 13:51 sankar krishnan <sankar...@gmail.com> đã viết:

Dear All ,

  In our Pressure vessel project 10mm thickness plate they using (GTAW+SAW) process , They have welded GTAW with 4 mm of 10mm thickness and leave open for 1 days .. I like to Know what is the interruption limitations to stop welding Limits for <19mm thickness 

Please send me code documents 

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