Think of ZA-12 the same as Al just stronger and machines better than some aluminum due to the copper content, etc. You can buy pre made ZA alloys, some have trouble finding a good zinc source!
Wonk
--- In gingery_machines@yahoogroups.com, Jim Ash <ashcan@...> wrote:
>
> Since the subject of ZA-12 came up, you guys have peaked my curiousity and I'd like to try brewing some and playing with it. I've only ever poured aluminum (unless lead, solder, and Wood's metal count), but I'm interested in the improvement of mechanical properties of the ZA-12 over the Al. The one question that I haven't seen answered is if scraping the ZA-12 is any easier or harder than Al. I presume the ZA-12 is easy to machine, but then again, I've never tried it.
>
> Jim Ash
>
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