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  • Corus markets new innovative grade of steel - HyPerform

    1 Apr 2010

    Corus is first to market with an innovative, new grade of steel, Dual Phase (DP) 800HyPerform – an advanced high-strength steel designed specifically with the needs of the automotive industry in mind.

    DP800HyPerform® combines the strength levels of a DP800 grade with the formability properties of a DP600 grade, without compromising on weldability. This grade was developed in close cooperation with a number of automotive OEMs in order to meet their exacting needs.

    DP800HyPerform has been specifically developed for use in making lightweight automotive parts such as structural members and reinforcements that must be highly crash-resistant. The steels’ minimum ultimate tensile strength is 780 MPa, similar to that of Corus’s existing DP800 grade. The difference is that DP800HyPerform offers extra ductility, resulting in good formability in combination with good weldability. This makes it particularly well suited for complex shaped stamped parts. It is available as hot dipped galvanised material and fulfils all typical automotive processing requirements.

    Corus’ ongoing collaboration with leading automotive OEMs guided the product development and aligned the final properties of DP800HyPerform with the needs of the automotive market. DP800HyPerform’s metallurgical properties not only address customer processing requirements and in-car performance but also address the need for reducing the total cost of ownership. The improved formability of this high-strength steel results in higher processing yield and enables part consolidation, allowing for smarter and lighter design of crash and structural members. In addition, DP800HyPerform has a hot dipped galvanised zinc coating, which incurs a lower cost than electrolitically galvanised zinc coating that is required for TRIP steels, for example.

    Maurice van Giezen, Manager Corus Automotive Business Development, commented: “We are often faced with the apparent paradox of vehicle manufacturers wanting materials that have better crash resistance and offer improved press shop performance, but that at the same time can be supplied at lower cost. By combining the benefits of a number of different grades of steel into one product, DP800HyPerform achieves all three of these objectives."

    During the development of DP800HyPerform, Corus developed a new metallurgical process to enable the combination of favourable properties. DP800HyPerform is a Dual Phase steel with improved formability, and is a compromise between the standard DP800 steels and TRIP steels in terms of forming properties.  It is easily weldable (similar to DP welding behaviour) and is less expensive than TRIP steels. It gives automotive engineers greater design freedom resulting in lower vehicle weight without compromising performance, safety or cost. DP800HyPerform can also be used to replace complex shaped DP600 parts, offering increased performance or weight saving through down-gauging. The product, which is now on sale, has been successfully trialled and is due to be introduced into several car models in the near future.


    Ends

    For high-resolution images, please contact mferrari@automotivepr.com

    Corus Automotive media enquiries:
    Marco Ferrari +44 (0)207 494 8050 mferrari@automotivepr.com

    Corus in Automotive

    Corus, part of the Tata Steel Group, is one of the leading suppliers of steel products, solutions and technology to the automotive industry. In automotive Corus supplies all major global car manufacturers and their related Tiers helping our customers to find the optimum balance between performance and affordability. A broad range of Corus steels, ranging from strip and engineering steels to tubes, are used by our customers to make products that are used in body-in-white, closures, chassis and suspension systems, powertrain, seating systems, safety systems, interior trim and other components. 

    Corus is committed to the global automotive industry, uniquely combining its materials and vehicle engineering knowledge to respond cost-effectively to key drivers of importance to the sector, such as safety, fuel-efficiency, innovation and the environment. The Company actively supports supply chain initiatives that improve efficiency and enhance the value of steel used in automotive applications.

    About Corus

    Corus is Europe's second largest steel producer. With main steelmaking operations primarily in the UK and the Netherlands, Corus supplies steel and related services to the construction, automotive, packaging, mechanical engineering and other markets worldwide.

    Corus is a subsidiary of Tata Steel, one of the world’s top ten steel producers. The combined enterprise has an aggregate crude steel capacity of more than 28 million tonnes and approximately 80,000 employees across four continents.