I am not a big fan of welding a bracket like that perpendicular to the direction of force. Especially one that small. It just increases the chance of a fatigue failure like what you see here and the crack continues to propagate. Even with a flat bracket, you can bend it and weld it along the same direction of force to give it more area to take the stress.
Kind of like this even though this is a round hanger. Or if you are going to do it like that anyway something larger to at least give it a chance. That is a pretty small bracket.
