Nikrothal – Nichrome (nichelin) are the same. Nickel is a pretty good conductor. Would it not be resistive alloy with Chromium site (between 15-30%) depending on the type.

But Kanthal is a better alloy. CrAlFeNi – Contains 22% chromium, 5.8% aluminum, balance iron and nickel, resulting in a wire more resistant to wear than resistive heating even classical nichelin. Kanthal site may vary depending on its type. Vaporizers use Kanthal-type NiCr 80/20 – nominal composition CrAlFeNi. There are several types depending on the alloy and purpose. Kanthal APM, A-1, AF, D. Further, where we do not meet iron and aluminum is called Nikrothal and refers only to the percentage of nickel in addition to chromium – Nikrothal 80, 70, 60, 40 (or as it is called nichelin, more say this name) more resistant to thermal wear if it contains less Cr, more resistance if it contains more Cr. Therefore appeared other derivatives, resulting a balance resistivity and more resistance in use. In the beginning, the atomizers were equipped only with Nichelin, then appeared Kanthal as an alternative. It has lower resistivity than Kanthal and I do not like this. More, it has a metallic taste especially in the beginning and short lifespan.

I would choose Nichrome simply because it is purer than Kanthal. As an aside, it would be better than resistive alloy Nikrothal and Kanthal, but are based Copper and do not recommend them.

Cuprothal the CuNi alloy (red nichelin) – high resistivity, high temperature resistant;

Constantan: 55% Cu, 45% Ni, Cuproathal better as the resistivity-resistance-use;

Manganine 43 – CuMnNi Copper-Magnesium-Nickel (4% Ni, 11% Mn, rest Cu). The constant resistivity (both cold and hot) 86% copper, so much that can be bonded by a wire, Welding machine.