Where are the weakest points typically found on steel tanks?

The ends of steel tanks are often considered the weakest points due to the design and structural factors associated with tank manufacturing and installation. The ends, or the heads of the tank, are subjected to stresses from both the internal pressure and external loads. These areas can have less material compared to the tank walls and are also more prone to defects or corrosion, especially if the tank is buried or exposed to environmental conditions that promote degradation.

Additionally, the manufacturing process can introduce weaknesses at the ends, such as uneven welding or fabrication issues. Regular inspection and maintenance focus on these critical areas to ensure integrity and safety, emphasizing their importance in the overall durability of underground storage tanks. Understanding these vulnerabilities is crucial for assessing tank condition and planning for mitigative actions.