What is the maximum size of fillet weld permitted between the lowest course shell plate and the bottom plate according to API 650?

What is the maximum size of fillet weld permitted between the lowest course shell plate and the bottom plate according to API 650?

• A. 3/8"
• B. 1/2"
• C. 5/16"
• D. 1/4"

Answer: (B)

According to API 650, the maximum size of the fillet weld permitted between the lowest course shell plate and the bottom plate is indeed 1/2 inch. This specification is important because it ensures that the structural integrity of the joint between the shell and the bottom plate is maintained. A properly sized fillet weld helps in providing adequate strength and resistance to the loads and stresses that the tank may experience during its operation. Additionally, adherence to these standards ensures compliance with industry regulations and promotes safety in the storage tank design. A 1/2-inch fillet weld strikes a balance between providing sufficient strength while allowing for practical considerations in welding and fabrication processes. This is crucial in minimizing defects and ensuring reliable performance of storage tanks in service.

According to API 650, the maximum size of the fillet weld permitted between the lowest course shell plate and the bottom plate is indeed 1/2 inch. This specification is important because it ensures that the structural integrity of the joint between the shell and the bottom plate is maintained. A properly sized fillet weld helps in providing adequate strength and resistance to the loads and stresses that the tank may experience during its operation.

Additionally, adherence to these standards ensures compliance with industry regulations and promotes safety in the storage tank design. A 1/2-inch fillet weld strikes a balance between providing sufficient strength while allowing for practical considerations in welding and fabrication processes. This is crucial in minimizing defects and ensuring reliable performance of storage tanks in service.