Steel plate for shells of API Std 650 ground supported flat-bottom tanks
When the API Std 650 ground supported flat-bottom tanks top shell course is the minimum thickness indicated in 5.10.4, Table 5-6 and Figure 5-6, details a – e, h and i, the minimum anchorage shall be designed for normal loads as specified by the Purchaser and by this standard. See 5.11.2.3 for the allowable stress. When the top shell course is thickened beyond the minimum thickness provided in Table 5-6 or as in Figure 5-6, details f and g, or a knuckle is used, the minimum anchorage shall be designed for three times the internal design pressure. The allowable stress for this loading is 90% of the minimum specified yield strength of anchorage material.
These API 650 documents will define the bases of design, operation, inspection, tests, examinations, and maintenance of an API Std 650 ground supported flat-bottom tanks industrial facility. Bidders will study and analyze all this API 650 documentation, both during the preparation of the quotation and during the execution of each project activity.
We have built solid cooperation with Myanmar Navy since 2015, starting from a try order about 412 tons LR AH36 shipbuilding steel plates. Myanmar navy builds frigate every year and book shipbuilding steel materials from us regularly. This time, the Myanmar navy’s local representative visit us and put another order about 2025 tons LR grade A steel plates. According to clients requirements, we arranged API Std 650 ground supported flat-bottom tanks SGS inspection for the LR grade A steel plates before shipping and send them inspection report.
}Usually, the soil resistance of the foundation should be considered before the design and construction of API Std 650 ground supported flat-bottom tanks. The soil endurance in the API Std 650 ground supported flat-bottom tanks construction area plays a decisive role in the basic cost of the tank. In areas with high soil resistance, not only the cost of foundation treatment can be greatly reduced, but also the ratio of height to diameter of storage tank can be obtained. Therefore, the investment cost of the API Std 650 ground supported flat-bottom tanks can be greatly saved in the area with large soil resistance.
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