How to select the material for the container body and its welding materials under high temperature, high pressure, and high alkalinity conditions
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Gentlemen, as the title suggests, how should one choose the material for the container body and its welding materials under conditions of high temperature (290 degrees Celsius), high pressure (7.5 MPa), and high alkalinity (30% NaOH solution)?
The material of the container body must exhibit an extremely low rate of corrosion in a 30% NaOH solution at 290 degrees Celsius, namely 0.2 mm per year. Calculate the thickness. Its welding material is selected based on the base material (the main material).