ABSTRACT
The basic specific property of weathering steels is their improved corrosion resistance in atmospheric conditions. Scope of the papers published on the corrosion behaviour of weathering steels in various atmospheric conditions is extensive and includes various characteristics of corrosion layers (Morcillo et al. (2013), Morcillo et al. (2014)). Development of weathering steel has been always accompanied by the implementation of largescale atmospheric corrosion tests (Copson (1945), Horton (1965)). Long-term exposure of corrosion specimens were realized mainly to study corrosion processes depending on the corrosivity of atmospheres, including evaluation of the specific effects, such as concentration of SO2 and chlorides deposition (Tidblad (2012)). Atmospheric corrosion tests were also carried out to evaluate the different chemical composition of weathering steels (Larrabee & Coburn (1962)).
