METHOD FOR PREDICTING DEGREE OF CORROSION OF WEATHER-RESISTANT STEEL

摘要

A predicted degree of corrosion of a coated or non coated weather-resistant steel is calculated by using meteorological observation data collected at a place where the steel is to be used. Extrinsic corrosion information includes the amount of flying salt and the amount of sulfur oxide, and intrinsic corrosion information on the components of the weather-resistant steel. The meteorological observation data preferably include the annual wetness time, annual mean wind speed, and annual mean temperature. The corrosion index is calculated, the amount of first-year corrosion of the weather-resistant steel and the stabilization index are estimated from the corrosion index, and the accumulated amount of secular corrosion is calculated.