Integral subframe

Salzgitter Flachstahl’s air-hardening steel grade RobuSal^®800 was especially developed for the automotive industry. This grade meets customer demands for lighter construction, better operational strength and excellent crash behavior.

Given its remarkable characteristics, RobuSal^®800 meets the latest requirements for automotive materials with regard to safety and lightweight construction potential:

• Very good cold formability
• High component strength produced by heat treatment
• Excellent welding properties in the soft, as well as in the tempered state
• Superior operational strength

RobuSal^®800 is already demonstrating its enormous lightweight construction potential today in the integral subframe of the Mercedes-Benz E-Class:

This component supports the essential units of the vehicle front, such as the engine, transmission, front axle and steering.

In this case, the use of RobuSal^®800 on the integral support enabled the thickness of the sheet metal and thereby the component weight to be reduced by 8 percent compared to the predecessor model.