You can silver solder stainless to itself or to brass or copper to make easier connections without risk of corrosion problems. The joint will only be as strong as the silver solder itself. You can use any silver solder, but you will need an acid-based flux specifically manufactured for nickel or stainless steel. Touch the silver solder to the joint seam. If the tubing is hot enough, the solder will melt completely into and around the seam. If the solder does not melt, apply more heat to the joint for Silver soldering, or hard soldering, as it is sometimes called, is the most durable soldering type and has the most number of practical uses. It is a process where two or more metal objects are joined by melting a filler metal over the joint. The filler metal, which in this case is silver,