[TheForge] Re: Repairing pot metal: Is *anything* reliable?

[Michael Horgan]

"POT METAL" today is a zinc alloy, usually a Zamac ,(zinc, aluminum, 
magnesium,copper, with a little cadmium and iron), melting points from 
Zamac-3 @725 degrees F to Zamac-12, 850 F

A hundred years ago, the alloys were much more variable, ;)


>What's the melting point of pot metal?  I'm wondering if the Alumaloy or 
>Alumaweld "welding"/brazing rod might not work on it.  It has a melting 
>point of about 725F or somewhere near there.  I just used some today on an 
>aluminum ladder for a friend.  It flows, it sticks, it's strong, it's 
>expensive (about $40-$45/lb).
>
>Dave Brown
>Heritage Smithing
>Green Bay, WI

Michael D. Horgan , lughaid@earthlink.net
http://members.aol.com/lughaid/
posting from
  A BRAZEN FORGERY
Blacksmithing and Metalwork
Claremont, Ca.