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 grades of conventional HSLA steel.

Typical Mechanical Properties for DUAL-TEN^® 780/800 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^® 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 the boundary between safe and unsafe areas. The broken line denotes the ASM approximation.

The forming limit curve for DUAL-TEN^® 780/800 steel can be approximated with conventional ASM FLCs calculated from n-value and sheet thickness.