In addition to the features and standards mentioned above, here are some more details:
Essential Features
Good Fatigue Resistance：Ships are constantly subjected to cyclic loads during operation, such as the alternating stress caused by waves. Shipbuilding steel plates should have excellent fatigue resistance to endure a large number of cyclic loads without cracking or deforming, ensuring the long-term reliability of the ship's structure.
Accurate Dimensional Tolerance：In order to ensure the accuracy of ship construction and the tightness of the structure, shipbuilding steel plates have strict requirements on dimensional accuracy. The thickness, width and length of the steel plates should be controlled within a certain tolerance range to ensure that each component can be accurately assembled.
Uniform Microstructure：A uniform microstructure is crucial for the performance consistency of steel plates. It can ensure that the mechanical properties and processing performance of the steel plates are the same in different parts, avoiding local performance differences that could lead to safety risks.
Standards
European Standards
EN 10225：This standard specifies technical delivery conditions for flat products of high yield strength structural steels for offshore structures. It covers aspects such as chemical composition, mechanical properties, and testing methods, and is widely used in the European shipbuilding industry and international projects.
DNVGL Rules：Det Norske Veritas Germanischer Lloyd (DNVGL) is an important classification society in Europe. Its rules for shipbuilding steel plates include requirements for material grades, strength levels, and testing and inspection procedures, which are highly regarded in the global shipbuilding industry.
Japanese Standards
JIS G3115：This is the Japanese standard for high-tensile steel plates for welded structure used in shipbuilding and other applications. It stipulates the technical requirements for steel plates, including chemical composition limits and mechanical property values, playing an important role in the quality control of Japanese shipbuilding steel plates.
ClassNK Rules：ClassNK (Nippon Kaiji Kyokai) is the Japanese classification society, and its rules define detailed technical standards and inspection requirements for shipbuilding steel plates, ensuring the safety and reliability of ships built in Japan and those using Japanese steel plates.
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