具有高延展性的EH32级海洋工程用钢及钢板的制造方法，属于钢铁材料制备领域。所述EH32级海洋工程用钢的化学成分按重量百分比计，包括：C：0.05～0.11％，Si：0.10～0.30％，Mn：1.00～1.50％，P：≤0.01％，S：≤0.01％，Als：0.01％～0.05％，其余为Fe及不可避免的杂质。本发明从合金元素含量、钢质洁净度控制、工艺优化与参数选择、微观组织控制等几个方面进行了大量且系统的试验研究，最终制造的EH32级别钢板具有高延展性，低温韧性优异，良好的断裂韧性的特点。

The invention relates to an EH32 class steel for marine engineering with high ductility and a manufacturing method of an EH32 class steel plate for marine engineering with high ductility, and belongsto the field of steel material preparation. The EH32 class steel for marine engineering comprises the following components of, in percentage by weight, 0.05% to 0.11% of C, 0.10% to 0.30% of Si, 1.00%to 1.50% of Mn, less than and equal to 0.01% of P, less than and equal to 0.01% of S, 0.01% to 0.05% of Als, and the balance Fe and inevitable impurities. According to the EH32 class steel for marineengineering with high ductility and the manufacturing method of the EH32 class steel plate for marine engineering with high ductility, a large number of systematic experimental researches are carriedout from the aspects of alloy element content, steel cleanliness control, process optimization and parameter selection, microstructure control and the like, the EH32 class steel plate which is finally manufactured has the characteristics of high ductility, excellent low-temperature toughness and good fracture toughness.