It *should* be mild steel?The CC chamber looks stunning!
On a separate topic has anybody been able to replicate the rusty effect on the triring? Tried the peroxide, salt and vinegar combo, worked nicely on DaveP's mild steel ring but not on the MoM ring... BRRogers Assuming the ring is stainless steel then?
If in doubt try putting a magnet on it. Stainless is significantly less magnetic.
Otherwise, you could buff it bright, put it in the oven at 400, take it out, and spray it (outside) with WD-40 if you want to darken it.
Adam also typically recommends boiling the ring In a combination of what you mentioned above to force the rust to move (Verity Cosplay) I'll let him remind us of that process since that has the potential to be noxious.
I've had other great success by leaving the steel I want rusted in a ziploc with bleach, peroxide, and steel shavings over the course of several days... and actually EVEN stainless steel will become rusted as well given the right circumstances (Stainless will rust if rusted mild steel is in near-proximity).
My trick is not to leave it 'drenched in fluid' but rather have enough in there to let it sit in dampness or 'vapor'. TIME and patience yields my favorite result in that process.