I'm not going to email Crazy now - it's nearly 6pm so they won't see it today.
Instead I'll properly test the TCR at vaping temperature range, which will give us the ultimate assessment of how it compares for vaping. Then I'll email them before the morning.
Yeah. What we will be able to do...
For the fun of it I weighed 0.6m of SS304 and the Crazy Mystery Wire and both showed as 0.6g. Doesn't tell us much, just that they're not majorly dfferent.
I may try weighing 3m later, I have 25m of this stuff and it doesn't look like I'm ever going to vape on it. That would make the...
Actually never mind, I just realised my scales only go to one decimal, so unless I weigh 5m of the stuff or something, that tiny difference is going to be hard to check for
I knew I should have got the scales that did 2 decimals.
@notarobot when you said SS, will any SS do? I have 0.40mm SS304. I have 316 and 317 but not in 0.40
I want to able to weigh the SS as well to confirm the comparison.
OK I'll leave out the magnetism
@druckle - if they have supplied a wire that is 70% Nickel and 30% Iron then they can honestly say they've provided what people have asked for. Indeed, their listing specifically says that it is 70% Nickel and 30% Iron. (Or to be precise, it says it's...
OK so we cannot absolutely assume that any given Ni70 Fe30 alloy should be magnetic, just because the other ones we've looked at are, and just because it's 99.9% made up of magnetic Iron and magnetic Nickel?
I ask because I need to know if I can legitimately include "it's not magnetic" in the...
Ni70 Fe30 is what we're expecting. The confusion was that it's sometimes called NiFe70, sometimes NiFe30. But in both cases, it's approx 70% Nickel, 30% Iron, with usually some trace elements in there as well. Sometimes it lists the Nickel as 70%, Iron as 'balance', sometimes the other way...
Succinct and to the point as always Mr Craig - not to mention that I just tested Ni200 @ 99.6% Nickel, and that's also magnetic
So if approximately 100% of NiFe's components is magnetic, then yeah, I think we should be able to expect NiFe to be magnetic..
(Unless Ni200 is magnetic because of...
If it hasn't yet shipped then yes that is all I could currently recommend, sorry :(
I will try and get more to the bottom of it, but if you have a chance to cancel then that has to be the recommendation at this stage. Apart from anything else, I don't see how the TCR can be different from what...
All I thought I knew/thought I was ordering was "Ni70Fe30". This is the same general description as Kanthal NiFethal 70 and Resistherm NiFe30. The key points being approx 70% Nickel and approx 30% Iron.
Of the two NiFes I have, both are magnetic, both have high TCRs (0.0032 and 0.005), both...
SS317 would make sense because Crazy Wire have a bunch of it. That's where I got my SS317 from in the past.
And christ you're right, the resistances match. I just checked on Steam Engine's Wire Wizard and 8 x 3mm wrap of SS 317 should be 0.648Ω. My coil read 0.63Ω. Close enough to be very...
Sorry for the post spam. Last point: I still can't rule out this 'NiFe' wire as being some kind of SS. The resistance is a bit higher than the SS' I know of, but only about 10% higher. It feels the same. It coils the same. It has a very similar TCR. It looks the same after being heated...
Same result with the 0.32/28G wire. Spaced coil 0.67Ω maximum resistance reading 1.15Ω = 0.001 TCR if it doesn't exceed 700°C, which is unlikely bearing in mind I'm holding my finger on fire for up to 20 seconds @ 20W / 4.6V and it's glowing very bright orange.
As a point of comparison, I just...
Oh and I've tested two of the spools now, and resistance on 0.32 was higher than the 0.40, by an amount commensurate with it being a thinner wire of the same material.
So that rules out just one spool being mislabelled SS or something (though it's really too high resistance for SS anyway)...
I spaced the coil and got it up to 1.09Ω = 0.001 TCR, assuming it's not exceeding 700°C which is a big assumption.
Then I put it up to 50W and held it for a few seconds and the coil self destructed (still not going above 1.09Ω)
Yeah I think this stuff is junk. I'm going to ask them for a data...
It literally could be SS. I haven't temp tested it yet, but in a quick test:
0.63Ω coil heated to bright orange glowing, increases in resistance no more than 1.05Ω according to Apollo Reliant display
Even if we're generous and assume the temp is no more than 700°C, that's still a TCR of a...
Hey all, I have a horrible lurgy so might not be around much
Just wanted to say:
First: @balazsk - awesome, and I can't believe I didn't think of that!
Second: My 304 Stainless has arrived from wires.co.uk; good price, good service, but the wire is not on spools, just held together with...
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