I would suggest staying away from Aluminum Bronze. The aluminum bronzes require special (read expensive and hard to get) fluxes to silver braze properly. Regular fluzes do not clean properly on aluminum bronze so it's basically like soldering without flux. Not very nice. What you want is a phosphor bronze. Look at Enco or McMaster-Carr
Ken Colorado USA > > What you need is a no zinc bronze. Bronze is copper alloy. Go to your > nearest machine shop and beg or buy a tiny piece of aluminum > bronze and turn > it to your needs. SAE 94 bronze is softer and good. It has lead but no > zinc. All machine shops have left overs and will give you a little piece > happily with no sweat.
