Evaluation of Atmospheric Corrosivity Indexes in the City of Tuxpan Veracruz

In this work we studied the effect of the seasons using aluminum wire samples on copper screw, plastic and carbon steel in order to determine corrosivity indices to assess the type of atmosphere (marine, industrial, urban and rural) that predominates in Tuxpan. They found that rates of aluminum corrosivity on steel screw used to assess the industrial atmosphere is within allowable levels in the four seasons of the year, in the case of urban-rural atmosphere in the spring season, the corrosivity index is higher than the level allowed within the regulations, in the autumn season is within the level permitted by the standard, and the summer and winter seasons are below the minimum level. Finally, in the spring and winter seasons indexes marine corrosivity of the atmosphere are within permitted levels, while for the summer and fall seasons corrosivity indices are minimal. It is considered that the effect of weather conditions dramatically affect the galvanic couple made up of aluminum and each screw in different atmospheres throughout the year so that must be suitably selected metallic materials for the construction of handrails, screens and windows in the study region to the aggressiveness of the marine atmosphere.