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Hot-rolled complex-phase steel for high-strength chassis components

Hot-rolled complex-phase steel for chassis applications

Hot-rolled complex-phase steels CP-W® by thyssenkrupp offer very high strengths and yield points. They are particularly suitable for the weight-saving production of cold formed chassis parts. The hot-rolled grades currently available are characterized by strong strain hardening even with only minor deformation forces.

thyssenkrupp supplies the following steel grades as per the product information or the reference steel grades in accordance with the respective standards.

Hot-rolled complex-phase steel

Steel grade Reference grade
DIN EN 10152,
10338, 10346 /
VDA 239-100
THICKNESS1
from _ to in mm
WIDTH1
from _ to in mm
CP-W® 660Y760T HDT760C / HR660Y760T-CP 1.70 – 5.00 70 – 1,400
CP-W® 800 - 1.70 – 5.00 70 – 1,400
1. Not all thickness and width combinations possible.

Material characteristics

Microstructure of complex-phase steel CP-W® 660Y760T. Microstructural contrasting with color etching according to Klemm.
Microstructure of complex-phase steel CP-W® 660Y760T. Microstructural contrasting with color etching according to Klemm.

Due to its selected chemical composition and special hot-rolling process, complex-phase steel has an extremely fine microstructure. In the complex interaction of matching microstructure components and precipitation hardening, this results in a particularly attractive combination of properties: high strength and wear resistance with good cold formability and weldability.

Heat treatment

Heat treatmet of hot-rolled complex-phase steels at temperatures from 500 to 700°C can be used to increase the yield strength by up to 100 MPa (e.g., 680°C, dwell time 0.7 min/mm sheet thickness in saline bath). In addition, forming in the temperature range from 550°C to 650°C enables complex parts to be produced without compromising the component properties.

Downloads

  • Product information CP-W® 660Y760T

  • Product information CP-W® 800

  • Advanced high-strength steels (Overview)

Discover our hot-rolled CH-W® chassis steel with optimized hole expansion.

Contact

thyssenkrupp Steel Europe AG

Kaiser-Wilhelm-Strasse 100

47166 Duisburg, Germany

+49 (0)203 52-0

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