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Home >> Porsche >> 2017 >> Macan S >> Repair and Diagnosis >> External Pages >> Different car >> Section 792 (5X - Body General - Body Construction - (95B) MACAN) >> Body Construction (WM 5X00IN) >> Structure Identification Materials

Structure Identification Materials

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Fig 1: Body Closures Structure Identification Materials
G11977791Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  1. Aluminum sheet
  2. Steel
Fig 2: Body Panel Structure Identification Materials
G11977792Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Item Material group Material Proof stress (1) Body Material Tensile strength (2) Use/Characteristics
A  Sheet steel DX54 120-220 N/mm2 260-350 N/mm2 Outer skin parts very malleable
Can be MIG welded
Part replacement as per Workshop Information
DX56 120-180 N/mm2 260-350 N/mm2
DX57 120-170 N/mm2 260-350 N/mm2
B  High-strength steel HX260LAD 260-330 N/mm2 350-430 N/mm2 Reinforcement parts moderately to not very malleable
Can be MIG welded
Part replacement as per Workshop Information
HX340LAD 340-420 N/mm2 410-510 N/mm2
HX420LAD 420-520 N/mm2 470-590 N/mm2
C  Very-high-strength steel HCT600X 340-420 N/mm2 > 690 N/mm2 Reinforcement parts not malleable
Can be MIG welded
Can be resistance spot-welded only using approved welders
Part replacement is not permitted
HCT780X 470-600 N/mm2 > 780 N/mm2
HCT980 C 600-750 N/mm2 > 980 N/mm2
D  Ultra-high-strength steel 22MnB5 > 950 N/mm2 > 1, 400 N/mm2 Pillars and columns not malleable
MIG welding permitted only in exceptional cases
Can be resistance spot-welded only using approved welders
Part replacement is not permitted
(1) Proof stress (yield stress) is the amount of mechanical stress above which a material will extend or buckle irreversibly or deform plastically.
(2) Tensile strength is the resistance of a material to a force tending to tear it apart. If the tensile force is greater than the tensile strength of a body, it will be damaged irreparably.