Steel Division
ahss high ductility stands for advanced high-strength high-ductility steels. These high-strength cold-rolled steels are a further voestalpine development of the classical AHSS steels (dual-phase, complex-phase and TRIP steels with minimum tensile strengths of up to 1200 MPa). Advanced high-strength, high-ductility steels offer properties in a balance never before achieved.
Coatings and portfolio. These steel grades are made corrosion-resistant by the application of high-tech metallic coatings used for the automotive industry, including hot-dip galvanized and electrogalvanized. The voestalpine portfolio includes the following:
Deep-seated success story The excellent properties are achieved based on a modified microstructure design that differs from classical AHSS. The use of an increasing share of bainite in the matrix structure and in some instances the use of stress-relieved martensite is crucial. In order to achieve the unusual properties, it is necessary to implement complex temperature control and a corresponding alloy design in order to suppress precipitation of iron carbides during bainite formation as well as during stress relief of the martensite.
