Aluminum is one of the most popular materials for cookware because it conducts heat very well, is lightweight, and is easy to form or cast. Almost without exception, aluminum cookware is always coated, either with a non-stick coating (PTFE) or with a ceramic coating. More information about this versatile material here...

Stainless steel is an extremely popular material for the manufacture of cookware, and in many areas stainless steel has replaced the materials previously used to some extent.
Stainless steel is virtually rust-free without any coating and is extremely durable. Find out here what you need to know about pots and pans made of stainless steel...

When iron pans are mentioned in general and cast iron is not specifically meant, then steel / carbon steel is usually spoken of; iron/steel/carbon steel pans should not be confused with stainless steel pans. Here you can find out what advantages and disadvantages iron / carbon steel has as a material for cookware...

Cast iron is a material that has been used to make cookware for centuries. The variant of enamelled cast iron is not quite as old. Raw, uncoated, and enameled cast iron share many characteristics, but are also very different in some ways. In this respect, when considering the advantages and disadvantages, a distinction must always be made as to what exactly is being discussed. More about this here.