Yes, Darto pans are made of carbon steel.
The regular Darto pans are 3 mm thick (like the two I own, the N25 & N27) but the new N30 will be 4 mm thick and have a helper handle and in this case I actually think the helper handle will be much needed even for a strong guy.
4 mm thickness will make the N30 as heavy as some of the heaviest cast iron pans out there, I believe.