STAINLESS STEEL INCLUDING BORON WITH EXCELLENT HOT DUCTILITY AND TENSILE PROPERTY AND METHOD OF MANUFACTURING THE SAME

摘要

With respect to boron-containing stainless steel with excellent hot workability and tensile properties, which can secure neutron shielding performance through boron addition and improve hot workability and tensile properties by suppressing the formation of hypereutectic boride precipitates by adding cobalt, and a method for manufacturing the same start The boron-containing stainless steel having excellent hot workability and tensile properties according to the present invention has carbon (C): 0.15 wt% or less, manganese (Mn): 2.0 wt% or less, silicon (Si): 1.0 wt% or less, chromium (Cr) : 18 to 20% by weight, nickel (Ni): 12 to 15% by weight, boron (B): 0.20 to 2.75% by weight, cobalt (Co): 3 to 10% by weight, and remaining iron (Fe) and unavoidable impurities characterized in that