STANDARDIZED STEEL IDENTIFICATION
In an effort to reduce confusion over the large number of steel grades in use, and the repairability and weldability
concerns involved with each, FCA US LLC has instituted new nomenclature which is applicable to material call-outs
and Body In White (BIW) views released for use in the repair industry.
All materials listed in the key may not be used on a given model, nor may every panel be identified in the blow-up
(ex: some groups do not show fascias).
WARNING: FCA US LLC engineering’s position on the use of heat during collision repair is as follows:
• Any body panel or frame component damaged which is to be repaired and reused, must be
repaired using the “cold straightening” method. No heat may be used during the straightening
process.
• During rough straightening prior to panel replacement, damaged panels or frame components may
be heated to assist in body/frame realignment. The application of heat must be constrained to the
parts which will be replaced and not allowed to affect any other components.
This “no heat” recommendation is due to the extensive use of advanced high strength steels in FCA US
LLC products. High-strength materials can be substantially and negatively affected from heat input which
will not be obviously known to the repairer or consumer.
Ignoring these recommendations may lead to serious compromises in the ability to protect occupants in a
future collision event, reduce the engineered qualities and attributes, or decrease the durability and
reliability of the vehicle.
This statement supersedes any previously released information by the FCA US LLC.
Failure to follow these instructions may result in serious or fatal injury.
Information on sectioning of components will be identified in Non-Structural Sheet Metal Repair, Weld / Weld
Bonding and Sectioning Procedures, (Refer to Collision Information - Standard Procedure).
NOTE: Corrosion protection must be restored after repair.
COLOR KEY DESCRIPTION COLOR
LS Low-Strength Steel Dark Grey
HS High-Strength Steel Green
VHS Very High-Strength Steel Red
LM Laminated Steel Light Grey
AL Sheet Aluminum Purple
MG Magnesium Brown
PL Plastic Light Blue
PL-R Fiber Reinforced Plastic Dark Blue
CO Composite Material Orange
31 - 56 31 - Collision Information RU
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