Dual Phase Steel

Dual Phase Steel

This information provides repair recommendations and general guidelines for steel classified as Dual Phase Steel (dual phase steel with a tensile strength up to and including 800 MPa), also known as DP.

General Motors recommends the following when repairing or replacing this type of steel during collision repair.

Note:The use of heat to repair damage is not recommended for this classification of steel.

Recommended Repairs

-Cold repairs can be performed on this type of steel, unless the damage includes kinks. If the damage includes kinks, the part should be replaced.

-Sectioning or partial replacement of this type of steel is recommended only at approved locations, in a specific sectioning procedure.

-This type of steel can be used as a sleeve, or backer plate, when recommended in a specific sectioning procedure.

-Squeeze resistance spot welding can be used to replace factory spot welds, where applicable.

-MIG plug welding and MIG stitch welding can be used on this type of steel.

-MIG brazing can be used on this type of steel.