EAM336-F12 is a new type of material based on the ASME SA336 Gr.F12 forging standard for nuclear power main steam pipeline

which is manufactured by the electro-fusion additive technology. In order to master the welding process of the material

this research is carried out. Through the carbon equivalent analysis method

this paper analyzes the hardening tendency and cold crack sensitivity of this material and determines the preheating temperature before welding

and through the weldability test respectively under the welding and post-weld heat treatment states in welding joint for tensile

bending

impact mechanical properties test

the chemical composition test analysis and metallographic examination test at the same time

the test results meet the ASME SA336 Gr.F12 performance requirements

show that this material has good weldability.