Steel Division
ahss high-ductility stands for “advanced high strength steels high-ductility”.voestalpine developed these high-strength, cold-rolled steels as an enhancement to the classic AHSS steels (dual-phase, complex-phase, and TRIP steels with minimum tensile strengths up to1200 MPa). ahss high-ductility steels offer a previously unattained balance among the following properties:
Coatings and portfolio. Proven metallic coatings protect these steels from corrosion. voestalpine offers the usual automotive coatings—galvanized and electrolytic. The portfolio includes:
The “deep” secret of success. These excellent properties are achieved based on a modified microstructure design unlike that of “classic AHSS steels”. The key is increasing the bainite content in the matrix structure, and sometimes using tempered martensite for highest-strength steels. The extraordinary characteristics result from a suitable alloy design and complex temperature control that prevents the separation of iron carbides both during bainite formation and when tempering the martensite.
