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Hot forming steels

Hot forming steels - thyssenkrupp Steel

Hot forming is a leading production technology that offers the potential to reduce costs and weight in auto construction. Our hot forming manganese-boron steels combine high strength with good forming properties and are ideal for safety-relevant structural auto body parts.

Direct (one-stage) hot forming is the most commonly used process. Forming and part hardening take place in one operation. Compared with conventional processes, hot forming with MnB steels permits significantly higher part complexity at low press forces. Hot-formed body parts like A-pillar, B-pillar, side and cross member as well as door rings meet requirements for weight reduction while offering equivalent stiffness, high strength, good dimensional accuracy and improved crash behavior.

Steels and coatings for hot forming:
MBW®, tribond® and AS Pro

For hot forming thyssenkrupp supplies hot-rolled, cold-rolled and coated MBW® manganese-boron steels and the high-strength, high ductility coated composite tribond®. A newcomer to the range: AS Pro, the innovative coating for significantly improved component and process reliability in automotive engineering.

In the automotive industry MBW® manganese-boron steels are mainly used for safety-relevant structural parts, including A- and B-pillars, bumper crossbeams, side impact beams and body reinforcements. Our MBW® steels offer extremely high strengths after hot forming while retaining very good forming properties. The steel composite tribond® is a unique combination of high strength and high ductility. tribond® 1200 was specially developed to absorb as much energy as possible in the event of axial stresses, such as those caused by a front-on collision. Typical uses include longitudinal members in cars. The higher-strength tribond® 1400 is ideal for parts subjected to high bending stresses such as B-pillars.

Our materials and automotive expertise for hot forming

  • Materials: Our portfolio of hot forming steels includes hot-rolled, cold-rolled and coated MBW® manganese-boron steels and the high-strength, high ductility, AS-coated composite tribond®.
  • Process: Established and patented tailored tempering process for hot forming that makes it possible to integrate different, precisely controlled elongation and strength properties into different areas of the same monolithic part.

The right property in the right place – tailored properties for hot-formed components

Depending on the demands placed on the components, tailored production processes like Tailored Welded Blanks, partial press hardening – be it Tailored Tempering in the die or in the hot forming furnace, flexible rolling or the use of patched blanks – comprise technical solutions for which thyssenkrupp Steel offers a wide range of uncoated and AS-coated MBW® and tribond® steels for hot forming. All these solutions show weight saving potential for crash-relevant structural car parts with additional local optimization of properties. A Tailored Welded Blank, can, for instance, also be a tailored overall solution for a hot-formed door ring.

Overview of hot forming products

MBW® – manganese-boron steel for hot forming

MBW® manganese-boron steels offer extremely high strengths and good forming properties, permitting weight savings when used for crash-relevant structural and safety parts in vehicle construction.

Product details

tribond® – composite for hot forming

tribond® combines strength with high energy absorption to permit significant weight savings in crash-relevant parts with complex geometries.

Product details
ThyssenKrupp Contact

Georg Parma

Product Management Coated Products/Hot Forming

thyssenkrupp Steel Europe AG

Kaiser-Wilhelm-Strasse 100

47166 Duisburg, Germany

Telephone: +49 (0)203 52-23562

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Further questions?

Please feel free to contact us for more information or enquiries.

To contact form
  • Product information MBW®

  • Product information tribond®

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