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Metal coated EN10346:2015: HCT490X, HCT590X, HCT600C, HCT780X, HCT780C, HCT980X, HCT980C
Metallbeschichtete Stähle
Metal coated advanced high-strength steel

Metal coated multiphase steels according to EN10346:2015

HCT490X, HCT590X, HCT600C, HCT780X, HCT780C, HCT980X, HCT980C

Metal coated advanced high-strength steels (AHSS) are multiphase steels that are hot-dip metal coated for corrosion protection. These steels enable complex shapes in high-strength applications without compromising corrosion resistance.

DP steel microstructure
CP steel microstructure
CP steel microstructure

Did you know this about Advanced High-Strength Steels

DP steel microstructure

The microstructure of Dual-Phase (DP) steels contains dispersion of hard martensite islands in a soft ferrite matrix. Hard martensite islands increases the strength and soft ferrite contributes to good formability resulting in low yield ratio (Rp0.2/Rm). In particular, the level of strain hardening is high at the beginning of forming, as a result of which stretch forming properties of DP steels are good.

Did you know this about Advanced High-Strength Steels

CP steel microstructure

The microstructure of Complex-Phase (CP) steels contains dispersion of martensite islands in a matrix consisting of ferrite and bainite. Due to the medium hard bainitic matrix of the microstructure, the yield ratio (Rp0.2/Rm) is higher as compared to DP steels. CP steels have better edge ductility and hole expansion ratio as compared to DP steels, and they allow small bending radius.

High final part strength after processing

Whenever AHSS grades are formed and painted, the work hardening and bake hardening can be utilized for high final part strength. Work hardening occurs during forming, and bake hardening takes place at elevated temperatures, for instance during curing step of painting process.