In the quest for safer and lighter cars, automotive and steel companies are rapidly introducing new advanced high-strength steels (AHSS) for body structures. AHSS alloys include high tensile strengths-500 MPa or greater- with good formability, and include grades like dual phase (DP), complex phase (CP), transformation-induced plasticity (TRIP) and some martensitic steels. The high strengths of these materials allow for mass-efficient designs for improved fuel economy, while simultaneously increasing crashworthiness. Unlike many competitive materials, AHSS can accomplish these objectives without increasing the overall cost to the manufacturer.
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