9ct Red gold alloy

Hi Guys,

Trying out something new to me.

9ct Red Gold.

37.5% Au
62.5% Cu

Not as red as I thought, but a deeper pink than rose gold.

I’ve found a few issues, and a few nice properties. I will be
spending more time with it to iron out some of the problems.

Just wondering if anyone on the list has played with the alloy?

Regards Charles A.