The overall suitability of various steels (strain-aging steels such as capped nitrogenized and rephosphorized steels, killed rephosphorized and microalloyed steels) for automobile body-panel applications is assessed by comparing their characteristics with the performance requirements (formability, weldability, paintability, etc.). The formability of the steel sheets is perhaps the most important requirement for body-panel applications. To minimize the loss of formability that occurs as strength is increased, steels having yield strengths of 40 to 50 ksi are considered the primary candidates for use in body panels. Of the different types of 40-to 50-ksi steels reviewed, the killed rephosphorized steels (especially a silicon-containing version) show the best combination of formability and weldability. Although some difficulty in meeting paint-performance requirements has been recently reported with these steels, additional studies are needed to identify those factors that determine paintability in the killed rephosphorized steels. (DePo)
High-strength steel sheets for automobile body panels
Hochfestes Stahlblech fuer die Karosserie von Kraftfahrzeugen
SAE-Papers ; 1-15
1979
15 Seiten, 12 Bilder, 6 Tabellen, 18 Quellen
Conference paper
English
High-Strength Steel Sheets for Automobile Body Panels
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