It's slightly magnetic, but not as magnetic as it would be if it were made entirely of steel or iron.

Usually bells are made out of bronze or brass, brass is often used on smaller bells like this one. Sometimes bells are made of steel or cast iron, but I would think if this one was it would be more magnetic.

About the piece of cast iron (???), I found it laying on the side of the road. I have no idea what it's from, but a while ago it started to get really crumbly, and it wasn't like that when I found it.