SB-171 alum brnz alloy D (tubesheet) to SA-516-70 (shell). The leak is caused by cracking in the weld metal/incomplete fusion of the weld metal-to-base metal. i do not know the type of weld or the welding filler metal. I am checking...
I've been tasked with correcting a leaking Struthers Wells heat exchanger. The problem is the tube sheet (SB-171) to shell (sa-516) weld is leaking, and appears to be a result of welding two dissimilar metals. The Mechanical Engineers think an appropriate fix would be to weld a carbon band...