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New 440MPa High-Strength Steel for Vehicle Outer-Panel
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 27, 2003 by SAE International in United States
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New 440MPa class high-strength steel, which had high r-value(1.6) and elongation(38%), was applied to outer-panel for the first time in the world. In this development FEM simulation was carried out to clarify the necessary steel properties, and the production conditions in strip mill were established. 10-kg weight reduction was realized by using this steel.