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api 620 crude oil storage tank free download pdf annular plate

api 620 crude oil storage tank free download pdf annular plate

api 620 crude oil storage tank free download pdf annular plate

api 620 crude oil storage tank free download pdf, SA387 Gr.12 Cl.2 material is suitable for refining and gas treatment in hydrogenation reaction and conversion equipment at high temperature. The maximum thickness of SA387 Gr.12 Cl.2 steel plate can reach 250mm. According to different thickness and impact requirements, the delivery status of SA387 Gr.12 Cl.2 steel plate is: normalizing and tempering or normalizing and rapid cooling and tempering.

In this project, an elemental area of API 620 oil storage tank wall is constructed of ASTM A516 Grade 55 steel plate subjected to a meridional unit force, T1, of 2620 lbf/in. tension and a latitudinal unit force, T2, of 2880 lbf/in. compression. The meridional radius of curvature, R1, is 132 in., and the length of the normal from the surface to the axis of revolution, R2, is 409 in. The joints in the wall are spot-radiographed, double-welded butt joints, and no corrosion allowance is required.
The problem in this example is to graphically find the minimum thickness of tank wall required for the given conditions (see API 620 tank standard 5.10.3.3).
Solution: As determined from Table 5-1, the maximum, allowable tensile stress value, Sts, for ASTM A516 Grade 55 steel plate in simple tension is 16,500 lbf/in.2. Since the compressive stress is latitudinal, the governing value of R for this situation is R1, or 132 in.

Before the start of erection, inspect each API 650 tank foundation to ensure that it is level and acceptable to receive Work. Remove temporary erection attachments welded to the interior or exterior of the api 620 crude oil storage tank free download pdf shell or to the bottom by arc gouging, and grind weld area smooth.

The company has accumulated rich experience in long-term cooperation with new and old customers, which makes our products api 620 crude oil storage tank free download pdf more unique in the same industry, and is favored and praised by users. We always adhere to the enterprise spirit of "integrity, dedication, and people-oriented" and the business philosophy of "creating benefits for users". As a leading international steel supplier, BEBON have two warehouses which are near by Tianjin port and Shanghai port.

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