Shell Courses Tab (General Tank Data) - TANK - Help - Hexagon PPM

TANK Help

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The material and its properties that are specified on the Tank Data tab display as the default values for the shell courses on the Shell Courses tab. The Shell Courses tab displays a grid where the height, thickness, corrosion allowance, material name, material design stress, and material test stress can be specified for each shell course.

  • The design and test stress values for the specified material are normally acquired from the Material Database. Initially, all courses acquire the same material, as specified on the Tank Data tab. However, as necessary, specific shell courses may be assigned a different material, or the material for specific courses may be manually modified by the user. If any modifications are made to the default material on the Tank Data tab, all the shell courses subsequently reacquire the default material specifications.

  • For carbon steels from Table 3-2, the software fills in the Sd and St values. For stainless steels, the value used for Sd is unknown until run-time. Therefore, for stainless materials, the allowable versus temperature table displays in the right-most grid columns of this dialog. For stainless materials, the value of Sd (on this dialog) is shown as zero. The actual value used in the calculations is reported in the output.