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TRIP 780/800 Steels
TRIP
steel 780/800 is recommended
for structural parts of high strength and complex geometry whenever
requirements of very high formability in stamping are accompanied with a
need for high crash energy management capacity.
Typical Mechanical
Properties for TRIP 780/800
| Product |
Yield Strength [MPa] |
Tensile Strength [MPa] |
Elongation [%] |
n-value 5%-UE |
True Stress/Strain Curve |
FLD Curve |
| HDGA |
435 |
825 |
24 |
0.19 |
N/A |
N/A |
Example of Stress/Strain Curve

Forming Limit Curve
Formability
of 780/800T steel is much better than conventional HSLA or DUAL-TEN® steel of
comparable strength level. Experimental FLC will be available in the
future.
Bake
Hardening
Response of 780/800T
HDGA Steel to a Typical Paint Baking Cycle

Combined
Effect of Work Hardening (WH) and Bake Hardening (BH)
for
780/800T HDGA Steel in a Typical Paint Baking Cycle
Yield
strength of 780/800T HDGA steel increases more than 75 MPa after
deformation to 2% and baking in a typical paint baking cycle.
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