API Std 650 ground supported liquid storage tanks roof ladder

The advantages of API 650 floating roof tanks have obvious environmental and economic benefits: in a specific climate environment, according to historical data, the economic value of the API Std 650 ground supported liquid storage tanks floating roof tanks in API 650 due to the reduction of oil and gas volatilization within 3-6 months is equivalent The installation and purchase cost of the API Std 650 ground supported liquid storage tanks inner floating roof means that the cost of the inner floating roof can be recovered within half a year.

The water dissolved in the oil will be separated out from the oil stored in the API Std 650 ground supported liquid storage tanks for a long time, and the acidic water layer will appear at the bottom of the API Std 650 ground supported liquid storage tanks for a long time, which will accelerate the corrosion of the API Std 650 ground supported liquid storage tanks and cause the wall thinning and even leakage. With the increase of service life, the API Std 650 ground supported liquid storage tanks must be inspected and cleaned regularly to check the hidden danger.

Impact Tests for High Alloys
Impact tests are not required for oil steel storage material nickel alloy welds made with electrodes/filler metals covered by AWS Specification A5.11 or AWS Specification A5.14, provided the nominal nickel content is 50% or greater, and the weld is deposited by the shielded metal-arc welding (SMAW), gas metal-arc welding (GMAW), gas tungsten-arc welding (GTAW), or plasma-arc welding (PAW) processes. When A5.11/A5.14 specifies the nickel content as a “remainder,” the nickel content shall be determined by summing the maximum specified values of the other elements (use the average specified value for elements with specified ranges) and subtracting from 100%.

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Ningbo port has trade and transportation with more than 50 countries and regions, such as the United States, CIS countries, Europe, Africa, Japan and South Korea, Southeast Asia, the Middle East and Hong Kong. Ningbo port has initially formed an all-round three-dimensional collection and distribution network of expressways, railways, aviation, river sea intermodal transport, water to water transfer, etc.