I use 2 14k pw alloys.
One is from AAA Precious Metals in Portland OR.
-It has lower palladium content and seems a bit harder and whiter
than the second alloy. It melts lower as well.
The second alloy comes from David H Fell Co. in CA.
-It has a higher palladium content and is grayer/browner to my eyes.
I describe it as “gunmetal”. It has a higher melting point.
Both seem to torch weld well although I am anxious to try them with
my Orion welder. As with most of my metal, I buy shot and pour up
Hope this helps,