DUAL-TEN®
780/800 DUAL PHASE STEEL
DUAL-TEN®
780/800 (dual phase) steel is recommended for high strength structural parts
responsible for crash energy management when formability requirements
are higher than offered by equivalent grade of conventional HSLA steel.
Typical
Mechanical Properties for DUAL-TEN® (dual phase)
steel:
Product
|
Yield
Strength
[MPa]
|
Tensile
Strength
[MPa]
|
Elongation
[%]
|
n-value
10%-UE
|
True
Stress/Strain Curve
|
FLD
Curve
|
|
HDGA
|
460
|
838
|
17.2
|
0.115
|
view
|
N/A
|
Example
of Stress–Strain Curve:
Note
that DUAL-TEN® (dual phase) steel has no yield point elongation (YPE).
Typical Forming Limit Curve (FLC):
Above is an
example of an experimental FLC for DUAL-TEN® 780 HDGA
steel of 1.6mm thickness. The
solid line shows boundary between safe and unsafe areas. The broken line
denotes the ASM approximation.
Forming
limit curve for DUAL-TEN® 780/800 dual phase steel can be approximated with conventional
ASM FLCs calculated from n-value and sheet thickness.
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