How does the weight of cast iron compare to stainless steel?

When comparing the weight of cast iron and stainless steel, the key factor to consider is their density. Cast iron typically has a density of around 7.1 to 7.3 grams per cubic centimeter (g/cm³), while stainless steel has a slightly lower density, ranging from 7.7 to 8.0 g/cm³. This means that, for the same volume, stainless steel is generally heavier than cast iron.

The difference in weight arises from the composition of these materials. Cast iron contains a higher percentage of carbon, which makes it less dense but more brittle. Stainless steel, on the other hand, is an alloy primarily composed of iron, chromium, and other elements, giving it higher density and greater strength.

In practical applications, this weight difference can influence material selection. For example, cast iron is often preferred for its heat retention and durability in cookware, while stainless steel is favored for its corrosion resistance and strength in construction and industrial settings. Understanding these weight and density differences helps in choosing the right material for specific needs.