CORROSION RESISTANT STEEL MATERIAL FOR STORAGE CONTAINER FOR CRUDE OIL AND HEAVY OIL, CORROSION RESISTANT COATING FOR STORAGE CONTAINER FOR CRUDE OIL AND HEAVY OIL, AND STORAGE CONTAINER SUPERIOR IN CORROSION RESISTANCE FOR CRUDE OIL AND HEAVY OIL

摘要

PROBLEM TO BE SOLVED: To provide a corrosion resistant steel material particularly suitable for a storage container for crude oil and heavy oil, which is represented by an oil tanker, an oil tank, a cargo tank of the oil tanker, a pipeline for an oil well or the like.;SOLUTION: The corrosion resistant steel material for the storage container for the crude oil and the heavy oil has a rust layer formed thereon, which includes 0.00010-0.1% C (by mass% hereafter), 0.0010-1.0% Si, 0.0010-2.0% Mn, 0.00010-0.1% Cr, 0.0010-2.0% Cu, 0.0010-2.0% Ni, and 0.00010-0.1% Ti, and includes iron sulfides and sulfur of 1.0-70% in total, and -FeOOH and amorphous components of 20% or more in total, when analyzed with an X-ray diffraction method.;COPYRIGHT: (C)2003,JPO