13 Cr STRUCTURAL STAINLESS STEEL WITH EXCELLENT IMPACT PROPERTY

摘要

PURPOSE: A 13% Cr structural stainless steel with excellent impact property is provided. CONSTITUTION: In a 13% Cr structural stainless steel with excellent impact property comprising 0.03 wt.% or less of C, Cr 11 to 13.5 wt.%, 1.0 wt.% or less of Mn, 1.0 wt.% or less of Si, 1.2 wt.% or less of Cu, 0.6 wt.% or less of Ni and a balance of Fe, the 13% Cr structural stainless steel is characterized in that C+N is less than 0.04, Cr equivalent=(wt.% Cr)+2x(wt.% Si)-(wt.% Mn)-2x(wt.% Ni)-30x(wt.% C)-15x(wt.% N)=9.8.