What are two common materials used for nonpressure aboveground tanks storing petroleum products?

Steel and concrete are commonly used materials for nonpressure aboveground tanks storing petroleum products due to their durability and resistance to the harsh conditions often found in environments where these tanks are located. Steel is a favored choice because it offers excellent strength and longevity, capable of withstanding the weight and environmental stressors while providing secure containment for hazardous materials. Concrete also plays a significant role, especially as a foundation or secondary containment system, due to its ability to resist fire and provide structural stability.

In the context of nonpressure tanks, these materials are preferred for their ability to safely store substances that could otherwise pose environmental or safety risks. The selection of steel and concrete aligns with industry standards and regulations aimed at minimizing the likelihood of leaks and spills, ensuring the safe handling and storage of petroleum products.