Mike;
I did not call you any name & have no intention of doing so. I put in 35 years in the machinist trade & the terms I used are universally common to that trade. Soldering as you say is normally done around 450°F. These may be tin/lead solders or lead free solders of primarily tin, but often containing traces of cadmium or silver & perhaps other components as well. Brazing was normally done with a "Brass" rod & required a Red heat. Silver Soldering was done very similar to brazing but didn't normally require quite as much heat & generally flowed easier. That Easy-Flo 45 @ 1145°F was about the lowest melt Silver-Solder I was familar with though. I guess plumbers & machinists use a different lingo, but we never referred to a low temp solder as a Silver solder, even though it might contain a trace amount of silver. Pure tin melts around 450° & pure lead around 620°. That 66/34 mix, known as the Eutectic point melts @ 356°, lower then either base metal. Any other mix of tin/lead will start to melt at that 356° temp but will remain slushy till a higher temp is reached to totally liquefy the component which has a greater percentage than the Eutectic point, chart I have for 50/50 lists 401°. The Eutectic Co based it's name upon this characteristic & sold a line of solders all of whose alloys were based upon the Eutectic point of the various alloy used. We used their 157 alloy by the miles of wire which as I recall contained mostly tin with some cadmium & a little Silver & still melted below 450°. We just caled it soldering though, not silver soldering. That term was reserved for those alloys requiring the metal being brought to a low red heat for it to flow.
