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50,000-cbm fly ash steel silos welds joining tank wall plates

50,000-cbm fly ash steel silos welds joining tank wall plates

50,000-cbm fly ash steel silos welds joining tank wall plates

A203GrD steel plate belongs to ultra-low temperature container plate. ASTM A203 is a low-nickel alloy steel, including five grades A, B, D, E, and F. Among them, Grades D, E, and F have a nominal nickel content of 3.5%, commonly known as 3.5Ni steel. A203D/E/F steel has good impact toughness and mechanical properties in a low temperature environment, and is usually used in a low temperature environment of -70~-101℃ (the tempered state can reach -107℃).

The refrigerated tank primary components shall include, but will not be limited to, the following parts of a single-wall tank or of the inner tank 50,000-cbm fly ash steel silos in a double-wall tank: shell plates; bottom plates; knuckle plates; compression rings; and shell manways and nozzles including reinforcement, shell anchors, piping, tubing, forgings, and bolting. Roof nozzles in contact with the refrigerated liquid shall be considered primary components.

In Appendix E to API 650 oil storage tank, the maximum values of inertia force, pulse pressure and convection pressure are superimposed, and tend to be conservative.In GB50341, only pulse pressure is calculated for 50,000-cbm fly ash steel silos tanks below 5000 m.

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