The 2019 Mazda 3 uses 1300 MPa (190,000 psi) steel for the front pillar and roof rail inners; the hinge pillar, roof rail, and side sill inner reinforcements, and the No. 2 crossmember. This cold-stampable steel was jointly developed by NSSMC (Nippon-Sumitomo) and JFE Steel, and will be used throughout Mazda’s lineup. Joining and repair techniques need to be adjusted to account for this ultra high strength achieved by an engineered microstructure.
Details from Mazda are in their Press Release.
Details on the crash load path and expanding AHSS use at Mazda are shown at Repairer Driven News.
-Danny Schaeffler, www.EQSgroup.com and www.Learning4M.com
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Bill Frahm
The Future is Forming 