a true annealing process would be to hold the metal or area to be annealed above A1 critial level for an amount of time (determined by the thickness of the specimen) and gradually cooled off to allow the metal time to properly transform it's grain structure. the technique you are doing is called normalizing which is when the metal is allowed to air cool at a fast rate. to do this properly you would need to know the exact alloy you have an what it's a1 critical limit is.
the manufacturer would likely provide this information upon request. good luck to you and be safe. saving a few bucks is not worth what could happen if the metal is not meeting the desired phyiscal properties you're altering.
one thing to think of... if you don't want to immerse the shell in water (since water inside the shell might not be so great) would be to use a sponge with a hole(s) cut in it - just shove the brass into the sponge soaked in water, and it'll cool off that thin wall quite effectively
Ideally to anneal brass, since it's a non-ferrous metal, you would quench in room temperature water from a "black heat" - i.e. if the lights are off, it should just barely glow enough to see. Letting it air cool, it can retain some internal stress.
a true annealing process would be to hold the metal or area to be annealed above A1 critial level for an amount of time (determined by the thickness of the specimen) and gradually cooled off to allow the metal time to properly transform it's grain structure. the technique you are doing is called normalizing which is when the metal is allowed to air cool at a fast rate. to do this properly you would need to know the exact alloy you have an what it's a1 critical limit is.
rednuck 2 years ago
the manufacturer would likely provide this information upon request. good luck to you and be safe. saving a few bucks is not worth what could happen if the metal is not meeting the desired phyiscal properties you're altering.
rednuck 2 years ago
one thing to think of... if you don't want to immerse the shell in water (since water inside the shell might not be so great) would be to use a sponge with a hole(s) cut in it - just shove the brass into the sponge soaked in water, and it'll cool off that thin wall quite effectively
Inventor81 3 years ago
Ideally to anneal brass, since it's a non-ferrous metal, you would quench in room temperature water from a "black heat" - i.e. if the lights are off, it should just barely glow enough to see. Letting it air cool, it can retain some internal stress.
Inventor81 3 years ago
You can get a Temp crayon at any welding supply store....they are avaialble in a wide range of temperautes....
ben77151345 3 years ago
where do you get a temperature indicator pen for annealing?
thanks
lovshooting 3 years ago
What exactly does annealing a brass case do???
Sry noob here =]
pingpong909 3 years ago
@pingpong909
It makes it more better.
diderr01 1 year ago
ideally you do it in lower light conditions to be able to pick the change in colour better and keep distance to flame uniform together with time.
flammo69 3 years ago