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Length: Enter the distance between the tops of outside stiffeners. This will automatically recalculate if the "Angle of contact of saddle with vessel" field is changed changed (See see Saddle - General Information).
Width - Top: Enter the width of the outside stiffener at the top of the stiffener.
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Stress (Cold): The material allowable stress at 70 °F (20 °C). When a 3.5:1 safety factor is specified in the vessel screen, this value comes from Section II, Part D (Table 1A for Ferrous Materials, Table 1B for Non-Ferrous Materials, and Table 3 for Bolting). If a 4:1 safety factor is specified, this value is calculated based on the ultimate strength from Table U in Section II, Part D; furthermore, the value is limited to the values listed in the allowable stress tables for yield and creep governed cases. Manually editing this field will sever the connection to the material in the database as indicated by the “Unlisted Material” caption.
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