An article containing information about advanced high strength steel content in 2019/2020 vehicles also has photos taken at I-CAR’s booth at SEMA 2018. These photos highlight sections of the 2019 Silverado body, with several of the parts labeled with strength levels and grade. You can see that GMs strategy on their new truck is to use 6XXX aluminum on the door skin paired with 5XXX for the inner. You can also see some of the parts where they use up to 1500 MPa steel.
See the slideshow at the bottom of article from Repairer Driven News .
-Danny Schaeffler, www.EQSgroup.com and www.Learning4M.com
2019 Silverado Body Structure Materials
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Bill Frahm