What materials are used in BIW?

Body-in-White (BIW) is the welded sheet-metal skeleton of a vehicle before painting or final assembly. It defines structural rigidity, crash performance, NVH behavior and overall weight. Today’s BIW relies on a smart mix of advanced high-strength steels (AHSS), ultra-high-strength steels (UHSS), hot-stamped boron steel and aluminum alloys to meet stricter safety rules while cutting mass—especially […]