Low Carbon Mn-Si-Cr Ferritic/bainitic Steels Can Become Steels Used for High Welding Heating Input
The experimental results prove that the steel JB800 can be welded with the high heating input.According to analyze to the reason of this results,this paper thinks:Making the steel of low carbon Mn-Si-Cr system and F/B(or M/B)duplex phases is a new path developing the high strength steels used for high welding heating input.