March 2005 - Advanced or ultrahighstrength steel (AHSS or UHSS) use in more than 60 percent of structural automotive stampings has changed the rules when it comes to tooling surface, heat and friction control, robotic automation, and paint pretreatment. With yield strengths now reaching production levels of 80-plus kilopounds per square inch (KSI), elevated temperatures, abrasiveness, and springback, AHSS has created a real market need for new lubricant technology.