Chevrolet Equinox Service Manual: Ultra High Strength Steel

Chevrolet Equinox Service Manual / Vehicle - General / Ultra High Strength Steel

This information provides repair recommendations and general guidelines for steelclassified as Ultra High Strength Steel, also known as UHSS. This type of steel normallyhas a tensile strength of 780-MPa, or greater.

This includes the common steel names ofUltra High Strength Dual Phase Steel (DPX)Martensitic Steel (M)Boron/Press Hardened Steel (B)Multi-Phase Steel (MP)TRIP Steel (TR)

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

Note:

Repair of this type of steel is not recommended.This type of steel should be replaced only, at factory joints. Sectioning or partialreplacement is not recommended.The use of heat to repair damage is not recommended for this type of steel.Stitch Welding is not recommended for this type of steel (unless replacing a factoryinstalled stitch weld).This type of steel should not be used as a backing reinforcement or a sleeve for asectioning joint.Recommended RepairsSqueeze Resistance Spot Welding can be used to replace factory spot welds, where applicable.MIG plug welding can be used to replace factory spot welds.MIG Brazing can be used to replace factory spot welds.

Mild Steel

This information provides repair recommendations and generalguidelines for steel classified as Mild Steel. This type of steelnormally has a tensile strength less than 270-MPa. Thisincludes the common ...

Metal Panel Bonding

This is intended to provide general guidelines for adhesivebonding of exterior panels as an alternative to Metal-Inert Gas(MIG) welding. Panel bonding may be seen as an alternative to MIGwelding to pr ...

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