metal?
 

ok i have a question what is a good thickness of steel plate that is silver solderable and where can i find it? i had some random metal plat that is steel but the solder just wouldn't stick i think i got it too hot right off the bat but it is impossible to heat up without instantly over heating. i think its just too thin. what do people use when they braze in the flat pieces in some shock hoops?

16 ga. steel.... you can buy a small sheet at Home depot also.... I don't use reg. solder though. I use Brazing rod. Big difference

I use silver solder for all my plate to tube work and it works fine.