Brass Work Hardening analysis by Alpha Munitions

[akajun]

Kajun, no.
What we commonly make cartridges out of is 70/30 brass and it is all one phase (alpha phase to be more specific) and that single phase brass does not precipitation harden the way other materials do.

If there were split necks on very old brass, most of the time it was due to contamination exposure to things that attacked the grain boundaries.

Didn’t know that
I was always told all brass age hardened

 

[Leeinmichigan]

Thanks Lee. Do you anneal? Do you keep your brass in the same cycle?

Charles

No, I do not anneal. As to same cycle (I assume you mean same lot), normally yes. However, when I shot my Railgun, I used brass from three different rifles (75 pcs). I did this because most ranges don’t give you enough time to clean, resize and load for ten-shot matches, i.e., Unlimited events.

 

[Rick300]

Seems to me that if you have an annealer, why not just anneal after every firing? One of the least time consuming part of reloading and evens everything out.