Eight-year atmospheric corrosion tests of A 588B (UNS K12040) weathering steel were conducted in industrial, marine, and rural environments. The material was tested following two types of heat treatment: quenched-and-tempered to produce a tempered martensite microstructure and normalized to produce a microstructure comprised of ferrite and pearlite. Results of these tests indicated that these heat treatments had no effect on the corrosion resistance and that the performance of weathering steels can be estimated solely on the basis of composition.

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NACE International
2000
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