前言 船体结构钢是用来制造船体及其附属结构的最主要金属材料,为使船体结构能在现代造船生产条件下顺利建造,为保证船舶的使用安全、可靠,除需要合理的设计和施工工艺外,还要求船体结构钢材必须具有各项良好的技术性能,如强度、韧性、耐疲劳性能、耐海水腐蚀性能以及某些特殊性能,还必须具有良好的工艺性能,如冷热弯曲工艺性能和焊接工艺性能等。 Foreword The hull structural steel is the most important metal material used to make the hull and its ancillary structures. In order to make the hull structure successfully constructed under the conditions of modern shipbuilding, in order to ensure the safe and reliable use of the ship, in addition to the reasonable design and construction process In addition, the hull structural steels must also have good technical properties, such as strength, toughness, fatigue resistance, seawater corrosion resistance and certain special properties, as well as good process properties such as hot and cold bending process properties and Welding process performance and so on.