marine steel mainly includes marine steel plate, profile (including angle steel, H-beam, T-beam, I-beam, bulb flat steel), and marine steel pipe, among which steel plate is the most important steel. As far as the ship itself is concerned, the main uses of various steels are as follows:
|
Types |
Application |
|
Steel plate |
Hull |
|
Angle, section steel |
Hull structure |
|
Bulb flat |
Keel |
|
Steel pipe |
Infusion line and pressure line |
Marine steel plate, classified as medium thick plate, is a kind of hot-rolled steel plate used to manufacture hull structure according to the construction specification of classification society.
First of all, good toughness of marine steel plate is the most critical requirement. In addition, it requires high strength, good corrosion resistance, welding performance, processing and forming performance and surface quality.
In order to ensure the quality and ensure enough toughness, the chemical composition of Mn/C in 2.5 or more, there are strict requirements on carbon equivalent, and by the shipping inspection department approved by the steel production.
