ATMOSPHERIC CORROSION OF SOME STEELS IN BEIJING AREA

17 steels were exposed in Beijing for 16 years. The results showed that the corrosion law was satisfied by double logarithmic function for low carbon steels, low alloy steels and weathering steels. The corrosion process was blocked by inner rust layers. The corrosion resistance of low carbon steels, low alloy steels and weathering steels was not obviously different. The low carbon steels containing a low content of sulphur showed fairly good resistance to atmospheric corrosion.