Fatigue characteristics and coating adhesion to the excellent civil engineering and building structures for stainless steel

摘要

PROBLEM TO BE SOLVED: To provide a stainless steel for civil and building construction, effectively improved in both fatigue property and adhesion property of coating film.;SOLUTION: The stainless steel is characterized in that it is composed of Cr: 8 mass% over and 15 mass% below, C: 0.0025 mass% over and 0.03 mass% below, N:0.0025 mass% over and 0.03 mass% below, S: 0.03 mass% below, Mn: 0.5 mass% over and 3.0 mass% below, Al: 0.5 mass% below, P: 0.04 mass or below, Si: 0.1 mass% over and 2.0 mass% or below, and the balance Fe with inevitably impurities, and furthermore, the arithmetic mean roughness Ra of the surface is 0.2-50 μm and a strain generating the residual compressive stress of 0.01-50 MPa on the outer layer, is also introduced.;COPYRIGHT: (C)2001,JPO