ASTM A131 Grade FH40 Steel occupies an important position in shipbuilding.
Its characteristics are distinctive, first of all, it has high strength characteristics, yield strength of up to 315MPa and above, tensile strength can reach 490 - 620MPa. ASTM A131 Grade FH40 Steel also has good toughness, in the low-temperature environment, such as polar routes navigation, is not easy to brittle fracture, to adapt to the complexity of the changing marine climate to provide a strong protection.
In terms of advantages, the steel has excellent welding performance, and shipyard workers can use conventional welding process to put it together accurately, reducing welding defects, improving construction efficiency, and effectively controlling construction costs and cycle time. At the same time, its corrosion resistance in the marine environment has a certain performance, although it can not be compared with specialized corrosion-resistant alloys, but through the appropriate protective coating treatment, able to resist seawater erosion, humid air corrosion, extending the service life of the ship.
In the scope of application, ASTM A131 Grade FH40 Steel is mainly used in the construction of various types of merchant ships, tankers, container ships hull structure, such as ship plate, keel, ribs and other key parts, by virtue of its high strength, high toughness to protect the ship's overall rigidity and safety; in the field of marine engineering facilities, such as offshore drilling platforms, some of the support structure, also play an important role in building a solid foundation for the stability of the sea operations. In the field of marine engineering facilities, such as some supporting structures of offshore drilling platforms, it also plays an important role in building a solid foundation for the stability of marine operations; in addition, in some coastal large-scale floating structures, port loading and unloading equipment, it is also widely used because of its reliability, which contributes to the prosperous development of the marine industry.