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Bake-Hardenable Al-Killed Steel (RBH-35) for Automobile Body Panels
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1982 by SAE International in United States
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In order to attain the gauge reduction of outer body panels without spoiling the dent-resistance and formability, a bake-hardenable Al-killed steel sheet, named RBH-35, and has been developed in the conventional box-annealing process. RBH-35 is an 0.01% carbon, low manganese and rephosphorized Al-killed steel sheet retaining solute carbon of about 10 ppm. The steel exhibits high r-value, bake-hardenability of 40 MPa, ultimate tensile strength of above 350 MPa and substantially non-aging property. Results of stamping test of door outer panel showed that RBH-35 is the most suitable steel sheet for the thinning of outer body panels by about 10%. This paper reports the metallurgical features, mechanical properties and applications of the steel.
CitationOkamoto, A., Hayashi, Y., Takahashi, M., and Sugisawa, S., "Bake-Hardenable Al-Killed Steel (RBH-35) for Automobile Body Panels," SAE Technical Paper 820018, 1982, https://doi.org/10.4271/820018.
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