Steel Division

ahss high-ductility

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:

  • high-strength
  • top forming
  • good weldability
  • excellent crash behavior

Coatings and portfolio. Proven metallic coatings protect these steels from corrosion. voestalpine offers the usual automotive coatings—galvanized and electrolytic. The portfolio includes:

  • ahss high-ductility complex-phase steels with unbeatable bending properties for a yield strength with minimum tensile strengths of 980 and 1180 MPa
  • ahss high-ductility dual-phase steels with outstanding drawing properties and excellent crash behavior with minimum tensile strengths of 590, 780, 980, 1180 MPa

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.


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Commercial vehicle industry

Commercial vehicle industry

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Automotive industry

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Steel Service Center

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