Investigation on Microstructure and Mechanical Properties of SUS304DQ Strip Steel

Precision rolled SUS304 DQ stainless strip steel is bright annealed and the surface, microstructure and mechanical properties are investigated to study changes of the properties of the annealed strip steel.Resultsshow that the all hydrogen atmosphere can prevent the oxidation of the strip steel, and reduce the influence of annealing on its surface. When the 0.3 mm thick SUS304 DQ stainless strip steel is annealed at 1 040~1 160℃ for 3 min and then cooled quickly, the strip steel of fine surface quality can be obtained.