1. 

   Skratch Silver

   What would be a good ratio of copper - alum to get a stronger alloy without getting brittle ?
   
   Thanks,, John

    

   Skratch, Apr 27, 2022

   #1
2. 

   Petee716 Gold Banner Member

   Here’s a thread that would be helpful. There are others.
   http://forums.thehomefoundry.org/index.php?threads/qs-for-aluminum-bronze-caster.964/#post-22342

    

   Petee716, Apr 28, 2022

   #2

   Skratch likes this.
3. 

   Skratch Silver

   Thanks Pete, that answers some of my questions,,,,

    

   Skratch, Apr 28, 2022

   #3

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