The weldability of EH40 ship steel plate by submerged-arc welding with high heat-input was studied by the tensile test, impact test, hardness test and microstructure.

• 通过拉伸、冲击、硬度力学试验和接头微观组织分析,对EH40船板钢大热输入埋弧焊的焊接性和接头性能进行了试验分析。