Hi,
Thank you for the replies,
Yes we are using ER410NiMo wire for the GTAW and Metrode 13.4.Mo.L.R 2.5mm electrodes for the SMAW. Thank you for the links.
Temper bead while not as good as PWHT is easier to do for localised repairs on a hydro runner, a complicating factor is that the runner...
Carbon content currently unknown, i believe a couple of small samples have been taken for analysis, they are actually the result of laminations in the plate that came out as part of the crack excavation.
Cheers
Tim
thread338-322423
Hi From NZ,
We have a very similar situation to the one in the referenced thread except that we have 14 out of 15 blades cracked, the cracks appear to start at the trailing edge on the edge of the weld that attaches the blade to the crown ( hub )of the runner, the welds were...
