Abstract CP-W 660 is one of a family of omplex-phase steels, CP-W and CP-K, that offer very high strengths and yield points. They are particularly suitable for weight-saving production of cold-formed, crash-relevant automotive components such as side impact intrusion beams, B-pillar reinforcements,profiles, cross members, body reinforcements, bumper bars, and chassis parts. This datasheet provides information on composition and tensile properties. It also includes information on forming, heat treating, and joining. Filing Code: SA-841. Producer or source: ThyssenKrupp Steel Europe AG.