I soldered 2" TriClamp into my keggle, I used a custom machined dimple tool though (so that probably doesn't help you. Ill try to get some pics.
Originally Posted by emyers
My experience with soldering SS was it cracks easily. I had a 1/2" fitting in my keggle and it kept cracking any time i wasn't super careful with it. I went and welded on my fittings with MIG and now i wish i just drilled a 1 1/8" hole and stabbed the heater in with the stock o ring and a SS locknut on the inside.
I've seen this reported occasionally on the soldering thread, to be honest I'm not sure what happens to these people. Reading reports like this had me spooked so I did some test solders and beat them with a hammer. I was very impressed with how strong they were (they can be broken free with pretty good direct blows, but I'm not at all worried about them in service). YMMV though.
If you can get a nice clean weld done, its defiantly better. For me the soldering was good enough for now.