The working environment of the ship is extremely harsh. The hull has to bear the corrosion of sea water, marine organisms and microorganisms. The hull also has to bear the impact of large waves and alternating loads. The shape of the ship makes its processing technology more complex, so the requirements for hull structural steel are more stringent.
First of all, good toughness is the key point of marine steel plate. In addition, marine steel plate requires high strength, good corrosion resistance, excellent welding performance, processing performance and surface quality.
Of course, in order to ensure the quality and toughness, the content of chromium and manganese in marine steel plate is required to be more than 2.5%, and the content proportion of carbon is also strictly required, and it is produced by the steel plant approved by the ship inspection department.
Finally, according to the different needs of the ship to choose the use of marine steel plate or ordinary steel plate.
