API Std 650 unanchored flat-bottom tank division of responsibility

Before pressure testing, thoroughly flush the API 650 tank floating roof primary drain hose system. Supply API Std 650 unanchored flat-bottom tank blind flanges, gaskets, and bolting (for other types of blanking covers as may be required) necessary for testing.

The hardness of the welds contacting these environments, including the heat-affected zones, shall be considered. The weld metal and adjacent heat-affected zone often contain a zone of hardness that is well in excess of a value of 22 on the Rockwell C scale and could be expected to be more susceptible to cracking than would unwelded metal. Any hardness criteria shall be a matter of agreement between the Purchaser and the API Std 650 unanchored flat-bottom tank manufacturer and shall be based on an evaluation of the expected hydrogen sulfide concentration in the product, the possibility of moisture being present on the inside metal surface, and the strength and hardness characteristics of base metal and weld metal.

Iron and steel goods, including pig iron, ingots, all kinds of steel and so on. Therefore, logistics companies are required to load evenly and evenly in the process of transportation, prevent moisture and prevent corrosion. It is necessary to prevent the API Std 650 unanchored flat-bottom tank steel sheet from being mixed with water when transporting the steel; it is necessary to prevent the API Std 650 unanchored flat-bottom tank steel from being mixed with water when transporting the steel; it is necessary to prevent the steel from being mixed with water when transporting the steel; it is necessary to prevent the steel from being mixed with water when transporting the steel; it is necessary to prevent the steel from being mixed with water when loading the API Std 650 unanchored flat-bottom tank steel sheet on the truck Good luck.