The following tables were taken from “Creative Gold and Silversmithing” by Sharr Chote: Crown Publishers inc NY.
SILVER SOLDERS
Hardness Fine Silver Brass Melting point F
Hard#1 7 parts 1 part 1425
Hard 5 1 1460
Medium 3 1 1390
Easy grade 2 1 1325
(I suspect the first two temperatures had been reversed - but that’s what the book said.) Sorry, I can’t find a reference for formulae for gold solders.
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