The anti-corrosive weather resistant steel null which is superior in

摘要

PURPOSE: To provide a material excellent in machinability, having corrosion resistance and atmospheric corrosion resistance sufficient for use in an indoor environment, and requiring neither the use of expensive stainless steel nor the application of plating. ;CONSTITUTION: This material has a composition consisting of ≤0.10% C, ≤3.0% Si, ≤2.0% Mn, ≤0.030% P, 4.0-10.0% Cr, ≤1.0% Ni, ≤1.5% Cu, ≤1.0% Mo, one or ≥2 kinds among 0.01-0.40% S, 0.01-0.30% Pb, 0.01-0.25% Se, 0.01-0.10% Te, and 0.01-0.25% Bi, and the balance essentially Fe and containing, if necessary, one or ≥2 kinds among 0.1-0.7% Ti, 0.1-0.7% Nb, and 0.1-0.7% V and one or ≥2 kinds among 0.001-0.050% Ca, 0.01-0.50% Al, and 0.001-0.050% Mg according to the required characteristics.;COPYRIGHT: (C)1994,JPO&Japio