I've been using the Mauviel pans for about six years now and the handles look like cast iron or bronze, not sure, they are warm to handle on my electric range when cooking in the medium to slightly higher range, if I'm on high, like when bringing liquids up to boil, then they are too hot to touch. I also have a omlet pan with a brass handle and it's always plenty hot.
I went shopping to buy a new 12" Mauviel copper skillet at Christmas with the full intention of getting one with the newer stainless handle and found it to be very uncomfortable and hard to handle so once again got the more comfortable cast handle, which is always warm but the skillet cooks so beautifully with the burner never set above about 6.5 on a 1-10 heat range that I've never had to use a heating pad to lift it off the burner.
Mauviel stainless lined copper pans rock...well with everything but the price.
Jannie...PS I'm a newbee here and an avid home cook.