Related grades: HC380/590TR steel , HC420/780TR steel

HC400/690TR

HC400/690TR common cold rolled TRIP steel microstructure: ferrite, bainite and retained austenite, wherein the content of retained austenite is between 7% and 15%.

HC400/690TR common cold rolled TRIP steel performance features: TRIP steels have good formability, and the formability is mainly derived from retained austenite within the structure, that is, in the process of forming, the retained austenite will be gradually transformed into hard martensite, which is conducive to uniform deformation to achieve the unity of strength and ductility, and can solve the contradiction between strength and ductility.  In addition, TRIP steel also has a high impact energy absorption, high strength ductility, and high n value etc.

HC400/690TR common cold rolled TRIP steel main purpose: used for parts with structure relatively complex, such as the B-pillar reinforcement plate.

HC400/690TR common cold rolled TRIP steel performance:


Steel grade

     a, b
RP0.2’ MPa

Rm’ Mpa

              c
A80mm’ %

n

HC400/690TR

400~520

690

24

0.19

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