How does stainless steel compare to cast iron in terms of resistance to decay?

When comparing stainless steel and cast iron in terms of resistance to decay, the differences are significant due to their distinct material properties. Stainless steel is renowned for its exceptional resistance to corrosion and decay, primarily due to its chromium content, which forms a protective oxide layer on the surface. This layer prevents rust and degradation, making stainless steel ideal for environments exposed to moisture, chemicals, or harsh weather conditions.

On the other hand, cast iron, while durable and strong, is more susceptible to decay, particularly rust, when exposed to moisture or oxygen over time. Without proper coatings or maintenance, cast iron can corrode and weaken, limiting its use in environments prone to decay.

In summary, stainless steel outperforms cast iron in decay resistance, offering superior longevity and minimal maintenance in corrosive environments. Cast iron, though robust, requires additional protection to match the decay-resistant qualities of stainless steel.