Stainless steel coils
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If its comparable or even a little more in price DO IT!
Yes you can vape SS wire in either power mode or TC.
It is said that SS coils give better flavor than Kanthal, Nickel, and Titanium.
I have that on good authority from several Friends on ECF. I bought 500 feet Kanthal in my preps before SS wire was used in coils.
If the they told you that ss is the same as kanthal, they were wrong. They are drastically different.
Ss is much lower resistance than kanthal, gauge for gauge; roughly by about 3 gauges. In other words, the resistance of 28 gauge ss would be approximately equal to about 25 gauge kanthal.
Also, the resistance of ss will rise significantly, as the coil is fired. Kanthal rises very little. That's why ss works in temp control mode. It's because of the resistance rise. Kanthal doesn't work in temp control mode.
I've been using 316L ss in my mechanicals for a few weeks now.
Ss is much lower resistance than kanthal, gauge for gauge; roughly by about 3 gauges. In other words, the resistance of 28 gauge ss would be approximately equal to about 25 gauge kanthal.
Also, the resistance of ss will rise significantly, as the coil is fired. Kanthal rises very little. That's why ss works in temp control mode. It's because of the resistance rise. Kanthal doesn't work in temp control mode.
I've been using 316L ss in my mechanicals for a few weeks now.
Two days ago I have tried SS wire for the first time, both in wattage and TC mode. In wattage mode do not see any difference with Kanthal in vape quality. Will run my next tank until dry in TC mode, see if it can prevent dry hit. Then will decide if I like TC mode. For most of my tanks I will continue to use Kanthal, it is better for building in my preferable range (1-1.5 ohm).
I love SS, I find it easier to work with and it lasts longer. Also if I start running low on Juice I change to TC until it's dry. It's not the same as Kanthal, to me, it's much better.
I don't have regulated mods. I only use mechanicals. I've been experimenting with ss for a few weeks, and I do like it. However, I build at considerably lower 'cold' resistance than I do with kanthal. IMO, that's the trick to building ss for mechanicals. You have to take into account the resistance climb, as the coil is fired. With kanthal, I usually build around .4 to .45 ohms. With 316L ss, I build at about .3 ohms. As the coil is fired, the resistance will climb to around .42 ohms. It makes for a nice smooth draw.
You're right it does have lower resistance than Kanthal but that is because SS IX a pure mineral instead of a conglomerate of two or three differerent mineral such as Kanthal
But cutting to the chase SS wire us better for three reasons.
Power mode
TC mode
Better flavor.
If your vape shop truly told you they are the same, then they are WRONG and should get their facts straight. As others have said, they are not the same and care should be taken with regards to resistance when building coils with SS.
This kinda pisses me off for safety reasons. Imagine some newb hearing this and building(same guage/wraps) for a mech and assuming the resistance is the same. /smh
No, not because of that. 316 SS has 3 main components, the same number as Kanthal. And it also has very poor conductivity, much worse than pure metals.
Actually, stainless steel, of which there are many kinds, isn't a pure mineral. SS is an alloy; mainly chrome, nickel, and iron, plus other metals, depending on the type of stainless.
This was alot of useful info! Idk if any of you have ever heard of vape dojo but thats where i went. It was $3 for 30ft. of it and thats why i came on here ti ask about it. Ive only ever used kanthal. And ive only used power mode and ive only been using 28g. Ive been using the rda on my kanger subtank mini and i have a maphisto dripper and the avacado 24. I have pre-built claptons in the avacado, double parallel coils in the maphisto and a single parallel in the subtank. I normally like to vape between a .3 and .5ohms. Is temp control better than power mode? And how would i use it in tc?
It can be fired in both modes, generally it's about half the resistance of kanthal, the only problem with it which really isn't a problem is when making microcoils be sure to brush/rake your coils as they are prone to hotspots if the coil isn't seated properly...
If they are building on a mechanical and are "assuming" resistance then they probably shouldn't be within 10 feet of a mechanical devise anyway.
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Now, I am enticed. I only use mechs. If the resistance starts low and goes up as it heats up, this should help the ramp up time, right? and if 28 gauge SS is approx. the same resistance as 25 guage kanthal, this should help in ramp up time too, correct? If so, I gotta get some SS wire and experiment. I use dual coils and always build around .32 to .35 ohms. 
SS is different, it has a much lower resistance than kanthal. I don't like SS for power mode unless I'm using my DNA 200 which monitors the resistance as you're firing it, but I might as well use temp control. SS is my favorite wire to use; No 1, it's easy to work with, No 2 it has the cleanest flavor imo and No 3 you can dry burn it. Big problem with SS is it's not consistent.
Since your on a regulated (dc-dc buck/boost), you probably want 30g 316l or 28g 316l since resistance doesn't really matter. Only time i use the 24g is when it's wrapped with the 30g. Play time. Figure out the heat flux you like, your mod range (max wattage and voltage), and how much vapor/flavor you like (surface area).
Example is for rta's i want to work on any of my regulated mods, i do a ss 316l 30g 3mm id 7 spaced wrap. Comes out to about 1.3Ohms and at 18W has a heat flux of 250 mW/mm^2. So amp drain is only ~5A (I=P/V using just a nominal voltage of 3.6). My mods would have to be able to push 4.8V (power law). So even my lowly provari p3 with a 20W 6V max runs it as well as my 200W mods. As good vapor and flavor (for me) as my 0.3ohm battery sucking builds. If you move to a mech you wouldn't do it this way.
Example is for rta's i want to work on any of my regulated mods, i do a ss 316l 30g 3mm id 7 spaced wrap. Comes out to about 1.3Ohms and at 18W has a heat flux of 250 mW/mm^2. So amp drain is only ~5A (I=P/V using just a nominal voltage of 3.6). My mods would have to be able to push 4.8V (power law). So even my lowly provari p3 with a 20W 6V max runs it as well as my 200W mods. As good vapor and flavor (for me) as my 0.3ohm battery sucking builds. If you move to a mech you wouldn't do it this way.
I've been using 34 gauge 316 for about a month in my mechs. I do 3 strands twisted and 5 wraps at 3mm dual coil and its divine.
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