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Up Topic Welding Industry / Technical Discussions / welding on inservice lines API 1104
- - By firstpass (**) Date 10-03-2010 23:07
Where can information on heat input for welding on in service lines be found. what products and at what pressures being pushed in pipelines does the required heat input have an affect on the welding parameters. Does anyone have charts associated with this information.

Thank you for your assistance

firstpass
Parent - By jarsanb (***) Date 10-04-2010 14:36
I do not have a chart and maybe someone here can provide more specific info., but as you have probably already looked into, the API 1104 19th Ed. and newer has appendix B addressing this issue. In the footnotes there is reference to:

Development of Simplified Weld Cooling Rate Models for In-
Service Gas Pipelines”, PRCI Catalog No. L51660

“Thermal Analysis Model for Hot-Tap Welding Version 4.2,” PRCI Catalog
No. L51837.
Up Topic Welding Industry / Technical Discussions / welding on inservice lines API 1104

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