해양 강판은 해수 환경에서 사용하도록 특별히 설계된 일종의 강판입니다. 그것은 고강도로 만들어집니다, 부식에 저항할 수 있는 저합금강, 마모, 바다의 가혹한 조건으로 인한 피로. 제조 공정에는 제어 압연과 같은 특수 생산 방법을 사용하는 것이 포함됩니다, 그리고 예상되는 용도와 기능에 따라 다양한 등급과 두께의 강판이 생산됩니다. 해양 강판은 일반적으로 조선에 사용됩니다., 해양 시추 장비, and other marine structures due to their high strength, 내구성, and corrosion resistance properties.
Marine steel plates can have different grades, depending on the intended use and the specific properties required for the steel plate. Some of the commonly used grades of marine steel plates include ABS Grade A, B, D, E, AH32, DH32 시리즈, EH32 시리즈, FH32 시리즈, AH36 시리즈, DH36, EH36 시리즈, 및 FH36. These grades are classified by the American Bureau of Shipping (ABS), which is a leading classification society for marine vessels and structures. Other classification societies such as DNV, BV, LR (LR), and RINA also have their own grading systems for marine steel plates. Each grade has specific mechanical, chemical and physical properties that make it suitable for different applications in the marine industry.
The selection of the appropriate grade of marine steel plate for shipbuilding depends on various factors, such as the type of vessel, its intended use, the operating conditions, and the regulatory requirements. Here are some basic guidelines for selecting different grades of marine steel plates:
1. Consider the type of vessel: Different types of vessels have different requirements for the strength, 강인 성, and corrosion resistance of the steel plates. 예를 들어, offshore support vessels require high toughness and fatigue resistance, while LNG carriers require high strength and low-temperature toughness.
2. Consider the operating conditions: The operating conditions of a vessel, such as the temperature, pressure, and exposure to saltwater and other corrosive environments, can affect the performance and durability of the steel plates. 그러므로, it is important to choose a grade that can withstand the specific operating conditions of the vessel.
3. Consider the regulatory requirements: The marine industry is subject to various international and national regulations that govern the design, 건축, and operation of vessels. These regulations often specify the minimum requirements for the mechanical properties, 화학 성분, and testing procedures of the steel plates used in shipbuilding. 그러므로, it is important to choose a grade that meets the regulatory requirements of the intended application.
요약하면, selecting the appropriate grade of marine steel plate for shipbuilding requires a detailed understanding of the specific requirements and operating conditions of the vessel, as well as the relevant regulatory standards. Consulting with a qualified marine engineer or naval architect can help ensure that the chosen grade meets these requirements and contributes to the safe and efficient operation of the vessel.
BV-A and BV-D are classification society notations used by Bureau Veritas (BV) to identify the class requirements and standards that a vessel has been built and maintained to. These notations do not have a specific “grade” as they are used to classify different types of vessels for different purposes such as offshore support vessels, tankers, container ships, bulk carriers, and so on. The requirements for each BV notation vary depending on the type of vessel and its intended use.
BV/A is the plate certified by the French Bureau of Shipping. The general strength shipbuilding plate specified by China Classification Society can be divided into four quality grades: A, B, D and E; High strength structural steel is divided into four quality levels: A, D, E, and F, with three strength levels (32, 36, 그리고 40).
There are four toughness levels of ordinary strength steel for ship plating: A, B, D, and E. The strength of each level is 235MPa, but the low-temperature toughness is different. They have the same impact resistance at 20 ° C, 0 ° C, -20 ° C, 그리고 -40 ° C, 각각;
BV/A ship plate heat treatment is hot-rolled
Performance requirements for BV/A ship plate steel plate thickness direction: Z15, Z25, Z35.
BV/A ship plate flaw detection requirements: first, second, and third detections.
We can supply all kind of marine plate with CCS or BV certification:
