I'm not a materials/mechanical engineer, but I've been looking at some numbers, and for a pot-support windscreen (i.e. Caldera Cone), I'm curious why Ti Foil is being used over Stainless Steel Shim Stock.
From what I gather, the property of importance for pot support is 'modulos of elasticity':
From what I've read, it appears the Ti foil commonly used here (TiGoat/Suluk46) is '15-3-3-3':
The density is 0.172
The modulos of elasticity is 13.5
302 Stainless Steel, easily available from Amazon:
The density is 0.287
The modulos of elasticity is 28
13.5 * 0.287 / 0.172 = 22.526, which is less than 28
Meaning, for a given weight, 302 stainless steel shim stock is more supportive than 15-3-3-3 Ti Foil. Or, for a given support level, 302 stainless steel weighs less than 15-3-3-3 Ti Foil. When you add in the significantly less cost of 302 stainless steel, it seems like it'd be a no brainer? Or am I doing something wrong here?
Does this also make sense for a cookpot, itself? I mean, Ti pots must be popular for a reason, so maybe different physics/mechanics are coming into play for cookpots.
As an aside, from what I've read, these numbers don't differ much amongst the varrying alloys (etc.) of each.
Note that according to the same website, aluminum generally does not fair any better (better to have a thin windscreen than thick, IMO):