BORON-CONTAINING STAINLESS STEEL HAVING EXCELLENT HOT WORKABILITY AND TENSILE PROPERTIES, AND MANUFACTURING METHOD THEREFOR

摘要

Disclosed are boron-containing stainless steel having excellent hot workability and tensile properties, and a manufacturing method therefor, whereby neutron shielding performance may be secured by the addition of boron, and the generation of a hypereutectic boride precipitate may be inhibited by the addition of cobalt, and thus hot workability and tensile properties may be improved. The boron-containing stainless steel having excellent hot workability and tensile properties, according to the present invention, comprises: 0.15 wt% or less of carbon (C); 2.0 wt% or less of manganese (Mn); 1.0 wt% or less of silicon (Si); 18 to 20 wt% of chromium (Cr); 12 to 15 wt% of nickel (Ni); 0.20 to 2.75 wt% of boron (B); 3 to 10 wt% of cobalt (Co); and a balance of Fe and inevitable impurities.