Seeking anti-corrosion design information for aluminum-magnesium alloys

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Could that expert provide some information on the anti-corrosion properties of aluminum-magnesium alloys? These alloys are to be used for tank bodies. The medium involved is oil, gas, and water. The pressure ranges from 12 to 14 MPa, while the temperature ranges from 40 to 60°C. The dimensions of the tank body are 1400×5600, with a wall thickness of 90 mm. The density of oil is 760 kg/m³, while the density of gases under these conditions is 133 kg/m³. Will 3 pieces of aluminum-magnesium alloy, each weighing 7.5 kg, be sufficient? Is it possible to use bolts for connecting these components? Are there any relevant calculation formulas available? Could you provide the contact resistance, resistivity of the medium, output current per sacrificial anode, minimum protection current within the pipe, protection area, required protection current, and protection period? Thank you so much! ! ! ! ! !