A633 grade D plates API standard 650 liquid storage tanks

Our company attaches great importance to technical support and after-sales service, and has established a customer service center to provide unified technical support and service for API standard 650 liquid storage tanks various engineering projects. Customer service center has a strong technical force of technical service team, composed of a customer service center manager, several API standard 650 liquid storage tanks after-sales service personnel, responsible for unified acceptance and processing of local after-sales service needs.

The factors that affect the "small breathing" loss of API standard 650 liquid storage tanks are: 1. Generally, the larger the storage tank is, the larger the total open area is, the larger the evaporation area is, and the greater the "small breathing" loss is; conversely, the smaller the storage tank is, the smaller the evaporation area is and the smaller the "small breathing" loss is. 2. It is related to the atmosphere. The lower the atmospheric pressure is, the greater the "small breathing" loss is; otherwise, the loss is reduced.

In this project, an area of steel storage oil tank wall is constructed of ASTM A285, Grade C, steel plate that is 5/8-in. thick and has spot-radiographed, double-welded butt joints. The wall is subject to tension in a meridional direction and to compression in a latitudinal direction. The values of R1 and R2 at the point under consideration are 75 in. and 300 in. respectively. A corrosion allowance of 1/16 in. is required. The computed (meridional) tensile stress, stc, in the net thickness after deduction of the corrosion allowance is 6000 lbf/in.2.