Materials tell you how the pan moves heat
Stainless steel is durable and nonreactive, but it is not an especially fast heat conductor by itself. Cookware makers pair it with aluminum in different ways. A full-body clad design carries that conductive layer through the sides; an encapsulated base concentrates it under the cooking surface. Hard-anodized aluminum responds quickly and often supports a nonstick surface, trading some high-heat freedom and long-term surface durability for easier release.
Those differences shape technique. Stainless rewards controlled preheating and can create fond for sauces. Nonstick usually needs less fat and releases delicate food more readily, but it should not be treated like bare metal. The materials guide translates the construction into cooking behavior so you can decide which compromise suits your repeated meals.