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Dual-phase steels

Photo longitudinal chassis beam

General

Dual-phase steels consist of a basic ferrite matrix that holds a hard martensitic dual-phase. The proportion of martensite is set by using a selective cooling process. It critically determines the material‘s strength. Using various ingenious cooling strategies, Salzgitter Flachstahl manufactures the widest range of dual phase steels for a multitude of applications.


Highlights:

Illustration weight reduction

Weight reduction


Illustration characteristics dual-phase steels

Customer benefits:

  • low yield strength
  • very good formability
  • extremely high work hardening level
  • reduction in the sheet thickness for complex components

Characteristics:

Grade VDA-Norm Yield strength Rp0,2 (MPa) Tensile strength Rm (MPa) Elongation A80 (%)
HDT550¹ - 300 – 400 530 – 620 ≥ 24⁴
HDT600¹ HR330Y580T-DP³ 330 – 470 580 – 670 ≥ 24⁴
HCT450X² - 260 – 340 ≥ 450 ≥ 27⁵
HCT490X² CR290Y490T-DP³ 290 – 380 ≥ 490 ≥ 24⁵
HCT590X² CR330Y590T-DP³ 330 – 430 ≥ 590 ≥ 20⁵
HCT780X² CR440Y780T-DP³ 440 – 550 ≥ 780 ≥ 14⁵
HCT980X² CR590Y980T-DP³ 590 – 740 ≥ 980 ≥ 10
HCT980XG² CR700Y980T-DP³ 700 – 850 ≥ 980 ≥ 8

Applications:

Car body

Front fender

Photo front fender

Front fender » more

D-pillar enhancement

Photo D-pillar enhancement

D-pillar enhancement » more

Seat crossmember

Photo seat side member

Seat side member » more

Longitudinal beam

Photo longitudinal chassis beam

Longitudinal chassis beam » more

Contact person Salzgitter Flachstahl GmbH:

Thorsten Gintaut

Eisenhüttenstraße 99
38239 Salzgitter

Phone: +49 5341 21 - 26 54

gintaut.t@salzgitter-ag.de

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