Might be an idea to temper or normalise that after the heat from welding hardening it.It's not forged or cast its just hard steel. Going by the sparks it's very hard. I gave it a really hot pre heat did the root with tig and capped with 4mm 7018s. No idea if it hold I guess it's got two chances. View attachment 517559View attachment 517560
You don't want it snapping off from being too brittle.



