Wind pressure of API 650 carbon and low-alloy steel tanks

API 650 Application As described by the American Petroleum Institute, the fabrication and installation of our surface welded API 650 carbon and low-alloy steel tanks steel storage tanks is normally used in industrial applications. In general, our standards for industrial on-site installation of storage tanks are established according to API 650, API 620 and API 12D.

Corrosion of the API 650 carbon and low-alloy steel tanks body caused by external conditions such as high temperature, rain, humidity, or inadequate anti-corrosion measures of the oil storage tank itself, the water-bearing deposits in the oil storage tank caused corrosion and perforation of the inner surface of the oil storage tank bottom plate. Defects fatigue cracks caused by stress, with the accumulation of time, the compressive strength of the API 650 carbon and low-alloy steel tanks body decreases and corrosion cracks occur.

Design of Compression-ring Regions
In this project, a cylindrical tank 30 ft in diameter is designed for an internal pressure of 5 lbf/in.2 gauge in the vapor space. The plate material is ASTM A131 Grade A steel for thicknesses of 1/2 in. and less. The top course of the butt- welded cylindrical sidewall is 1/4 in. thick, including a 1/16 in. corrosion allowance. The tank API 650 carbon and low-alloy steel tanks roof is a butt-welded spherical dome with an internal radius of 30 ft and a thickness of 1/4 in., including a 1/16 in. corrosion allowance. The maximum design liquid level is 6 in. below the plane of the juncture of the roof and sidewall.

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 650 carbon and low-alloy steel 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 650 carbon and low-alloy steel tanks after-sales service personnel, responsible for unified acceptance and processing of local after-sales service needs.

The company's logistics department has the ability to monitor the whole process of logistics. We monitor the goods in transit through advanced information technology and communication technology, timely discover and handle problems in the transportation process, and ensure the steel materials are delivered to the destination in a timely and safe manner. The professional logistics team provides powerful support for good comments of customers and good reputation of the company.