API X65 filler metal selection.

[QCPEEWEE]

Good day.
I was wondering if y'all can help me by giving me some information on a FCAW filler metal for API X65. I was wondering if E71T-1 would be sufficient or would it be better to run E71T-1 for root and hot pass and the run E80T-1. Any help would be greatly appreciated.

Thanks in advance.
QCPEEWEE

 

[EngrRodri]

please check the material tensile and yield strength and compare it to choices of filler wire you wish to use. if above the requirements of strength then it is 1 factor of consideration to use.

Others will be other mechanical strength and mostly is financial coast impact of selection. Check website of welding manufactures like, esab, lincoln, geka, & others..... they there table for corresponding materials

 

[weldstan]

I have qualified procedures with E70X-XX weld filler metals but prefer E80X-XX to assure meeting the tensile properties.