Dear Robert,
Yes this is known that 7018 can be used but what about with 7010 A1 for filling & capping?

In this case do we require pre-heating while using E-7010?

Also is there any method to check induced hydrogen in the weld joint while using E-7010? Where i can find reference of this electrode in code?

Thanx for sharing knowledge.
What shall be the minimum pre-heat temperature in case of E-7010.
One of our contractor has suggested to use E-7010 for filling capping on cross country gas pipe line construction. For root welding E-6010 would be used. Shall we go with E-7010? Any suggestions ...

Can any one let me know the difference b/w E-7010 & E-7018. Which one is used where? What are the advantages & disadvantages of both?

Thanx Irish.
Did you have any experience with ESR? What are the quality checks to be employed to gauge repair effectiveness?

We have evaluated an other repair option for subject issue which is ESR - Epoxy Sleeve Repair.
Epoxy grout covered with Metallic sleeve(bolted). Can any one share his comments / experience/References about this ESR?

seen today... Great going guys.... My appreciations to the team worked for this
Regards
NAQ

Ben, Have explored a local agency who performs composite repairs. They have provided following procedure.
1)- Surface preparation & have 3 options a)- Sand/grit blasting (not possible in our case due to low thickness & hig pressure natural gas inside) b)- Power brush cleaning c)- cleaning thru emery ...

Hey Mechcolor,
Was away on vacations. Yes i've performed MAWP calculations.
The difference b/w MAWP & operating pressure is nearly 200psig. MAWP being on higher side.
Any advice?
Regards
NAQ