Hot rolled complex-phase steel | thyssenkrupp Steel

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.

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